grass.script: replace deprecated use of pipes.quote() (OSGeo#2674)

'pipes' is deprecated since Python 3.11 and will be removed in version 3.13.
'pipes.quote()' is deprecated since version 2.7.

python/grass/script/core.py

@@ -27,7 +27,7 @@
 import codecs
 import string
 import random
-import pipes
+import shlex
 from tempfile import NamedTemporaryFile
 
 from .utils import KeyValue, parse_key_val, basename, encode, decode, try_remove
@@ -863,7 +863,7 @@ def parser():
         sys.exit(1)
 
     cmdline = [basename(sys.argv[0])]
-    cmdline += [pipes.quote(a) for a in sys.argv[1:]]
+    cmdline += [shlex.quote(a) for a in sys.argv[1:]]
     os.environ["CMDLINE"] = " ".join(cmdline)
 
     argv = sys.argv[:]