stlab: several fixes

[SpaceIm]

• Remove legacy conan v1 self.output.warn, otherwise it fails for "unknown compilers
• Remove noisy messages in configure() (these messages are already displayed by CMake during build, and messages in configure() are really noisy in a conan install)
• Add upper bound to cmake version range in build requirements
• Remove settings.build_type from package id. I think settings.arch could also be removed by I'm not sure.
• Set cpp_info.bindirs & cpp_info.libdirs to empty list

---

• I've read the contributing guidelines.
• I've used a recent Conan client version close to the currently deployed.
• I've tried at least one configuration locally with the conan-center hook activated.

[conan-center-bot]

Conan v1 pipeline ❌

Failure in build 6 (71b9973c0f9220fcfc5d610f6fc31e727e992771):

• stlab/1.7.1:
  CI failed to create some packages (All logs)

  Logs for packageID 8aed32ed7b78dda84dca9d040407fe8f7704a4f1:

  [settings]
  arch=x86_64
  build_type=Release
  compiler=gcc
  compiler.libcxx=libstdc++11
  compiler.version=10
  os=Linux
  

  [...]
  -- Installing: /home/conan/w/prod-v1/bsr/56514/cdaef/.conan/data/stlab/1.7.1/_/_/package/8aed32ed7b78dda84dca9d040407fe8f7704a4f1/include/stlab/concurrency/task.hpp
  -- Installing: /home/conan/w/prod-v1/bsr/56514/cdaef/.conan/data/stlab/1.7.1/_/_/package/8aed32ed7b78dda84dca9d040407fe8f7704a4f1/include/stlab/concurrency/traits.hpp
  -- Installing: /home/conan/w/prod-v1/bsr/56514/cdaef/.conan/data/stlab/1.7.1/_/_/package/8aed32ed7b78dda84dca9d040407fe8f7704a4f1/include/stlab/concurrency/tuple_algorithm.hpp
  -- Installing: /home/conan/w/prod-v1/bsr/56514/cdaef/.conan/data/stlab/1.7.1/_/_/package/8aed32ed7b78dda84dca9d040407fe8f7704a4f1/include/stlab/concurrency/utility.hpp
  -- Installing: /home/conan/w/prod-v1/bsr/56514/cdaef/.conan/data/stlab/1.7.1/_/_/package/8aed32ed7b78dda84dca9d040407fe8f7704a4f1/include/stlab/concurrency/variant.hpp
  -- Installing: /home/conan/w/prod-v1/bsr/56514/cdaef/.conan/data/stlab/1.7.1/_/_/package/8aed32ed7b78dda84dca9d040407fe8f7704a4f1/include/stlab/iterator/set_next.hpp
  -- Installing: /home/conan/w/prod-v1/bsr/56514/cdaef/.conan/data/stlab/1.7.1/_/_/package/8aed32ed7b78dda84dca9d040407fe8f7704a4f1/include/stlab/test/model.hpp
  -- Installing: /home/conan/w/prod-v1/bsr/56514/cdaef/.conan/data/stlab/1.7.1/_/_/package/8aed32ed7b78dda84dca9d040407fe8f7704a4f1/share/cmake/stlab/stlabTargets.cmake
  -- Installing: /home/conan/w/prod-v1/bsr/56514/cdaef/.conan/data/stlab/1.7.1/_/_/package/8aed32ed7b78dda84dca9d040407fe8f7704a4f1/share/cmake/stlab/stlabConfig.cmake
  -- Installing: /home/conan/w/prod-v1/bsr/56514/cdaef/.conan/data/stlab/1.7.1/_/_/package/8aed32ed7b78dda84dca9d040407fe8f7704a4f1/share/cmake/stlab/stlabConfigVersion.cmake
  [HOOK - conan-center.py] post_package(): [PACKAGE LICENSE (KB-H012)] OK
  [HOOK - conan-center.py] post_package(): [DEFAULT PACKAGE LAYOUT (KB-H013)] OK
  [HOOK - conan-center.py] post_package(): [SHARED ARTIFACTS (KB-H015)] OK
  [HOOK - conan-center.py] post_package(): [STATIC ARTIFACTS (KB-H074)] OK
  [HOOK - conan-center.py] post_package(): [EITHER STATIC OR SHARED OF EACH LIB (KB-H076)] OK
  [HOOK - conan-center.py] post_package(): [PC-FILES (KB-H020)] OK
  [HOOK - conan-center.py] post_package(): [CMAKE-MODULES-CONFIG-FILES (KB-H016)] OK
  [HOOK - conan-center.py] post_package(): [PDB FILES NOT ALLOWED (KB-H017)] OK
  [HOOK - conan-center.py] post_package(): [LIBTOOL FILES PRESENCE (KB-H018)] OK
  [HOOK - conan-center.py] post_package(): [MS RUNTIME FILES (KB-H021)] OK
  [HOOK - conan-center.py] post_package(): [SHORT_PATHS USAGE (KB-H066)] OK
  [HOOK - conan-center.py] post_package(): [MISSING SYSTEM LIBS (KB-H043)] OK
  [HOOK - conan-center.py] post_package(): [APPLE RELOCATABLE SHARED LIBS (KB-H077)] OK
  CMake Warning at CMakeLists.txt:13 (find_package):
    By not providing "FindQt6.cmake" in CMAKE_MODULE_PATH this project has
    asked CMake to find a package configuration file provided by "Qt6", but
    CMake did not find one.
  
    Could not find a package configuration file provided by "Qt6" with any of
    the following names:
  
      Qt6Config.cmake
      qt6-config.cmake
  
    Add the installation prefix of "Qt6" to CMAKE_PREFIX_PATH or set "Qt6_DIR"
    to a directory containing one of the above files.  If "Qt6" provides a
    separate development package or SDK, be sure it has been installed.
  
  
  CMake Warning:
    Manually-specified variables were not used by the project:
  
      CMAKE_POLICY_DEFAULT_CMP0091
  
  
  stlab/1.7.1: WARN: Using the new toolchains and generators without specifying a build profile (e.g: -pr:b=default) is discouraged and might cause failures and unexpected behavior
  stlab/1.7.1: WARN: Using the new toolchains and generators without specifying a build profile (e.g: -pr:b=default) is discouraged and might cause failures and unexpected behavior
  [HOOK - conan-center.py] post_package(): ERROR: [MATCHING CONFIGURATION (KB-H014)] Package for Linux does not contain artifacts with these extensions: ['a', 'so', 'sh', ''] (https://github.com/conan-io/conan-center-index/blob/master/docs/error_knowledge_base.md#KB-H014-MATCHING-CONFIGURATION) 
  [HOOK - conan-center.py] post_package(): ERROR: [MATCHING CONFIGURATION (KB-H014)] Packaged artifacts does not match the settings used: os=Linux, compiler=gcc (https://github.com/conan-io/conan-center-index/blob/master/docs/error_knowledge_base.md#KB-H014-MATCHING-CONFIGURATION) 
  ERROR: [HOOK - conan-center.py] post_package(): Some checks failed running the hook, check the output
  

---

^{Note: To save resources, CI tries to finish as soon as an error is found. For this reason you might find that not all the references have been launched or not all the configurations for a given reference. Also, take into account that we cannot guarantee the order of execution as it depends on CI workload and workers availability.}

[SpaceIm]

@uilianries is it possible to fix hook KB-H014? It doesn't check for package_type.