Option to disable stream api checking in Nginx Plus

[szibis]

Add feature to disable stream Nginx Plus API if no stream in Nginx configuration

With the current integration version, we get a lot of errors in Nginx Plus for calling Stream endpoints stats that does not exist if no Stream defined in Nginx configuration.

Now we will have the ability to disable stream checking in the Datadog integration configuration file.

When use_plus_api: True then we need now set also use_plus_api_stream: True to have all covered. This is aligned to values defined for endpoints in the Nginx integration code.

    ## @param use_plus_api_stream - boolean - optional - default: false
    ## If you are using the commercial version of Nginx, for releases R13 and above,
    ## there is a new API to replace the extended status API.
    ## See https://www.nginx.com/blog/nginx-plus-r13-released/
    ## When no Stream servers used we can disable this part to remove errors in Nginx Plus API calls.
    ## To use it set `use_plus_api_stream` to true
    #
    # use_plus_api_stream: true

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• PR title must be written as a CHANGELOG entry (see why)
• Files changes must correspond to the primary purpose of the PR as described in the title (small unrelated changes should have their own PR)
• PR must have changelog/ and integration/ labels attached

[codecov]

Codecov Report

Merging #7241 into master will increase coverage by 5.32%.
The diff coverage is 100.00%.

Impacted Files	Coverage Δ
nginx/datadog_checks/nginx/nginx.py	89.94% <100.00%> (+2.37%)	⬆️
nginx/tests/test_unit.py	100.00% <100.00%> (ø)
clickhouse/tests/metrics.py
clickhouse/datadog_checks/clickhouse/__about__.py
dns_check/tests/mocks.py
linkerd/tests/conftest.py
istio/datadog_checks/istio/istio.py
envoy/tests/common.py
proxysql/tests/common.py
php_fpm/tests/conftest.py
... and 794 more

[hithwen]

Hi, thanks for your contribution. The PR looks good overall the only caveat is we need to be retrocompatible and because of that the default value need to be True

[hithwen]

Hi, you need to sync the config file again, otherwise its good to go

[hithwen]

Needs green build

[szibis]

@hithwen how can I sync config file once again ??

[hithwen]

@szibis you need to update to the latest version of ddev

[hithwen]

I'm very sorry, yesterday we removed some trailing whitespaces from the base templates so you need to rebase with master before syncing (or try applying the suggestion I've left)

addressed