ci: apply common-scripts CI refactor

Squashes these original commits for release/v5.4 backport traceability:
- 9b289dc5ad6 ci: apply idf-ci 1.x
- 381df980d57 ci: remove pip-cache and other unused jobs
- 32375a0a15e ci: apply common-scripts CI refactor

tools/test_build_system/README.md

@@ -9,7 +9,7 @@ This directory contains tests for the build system and build-related tools. Thes
 
 ## Running the tests locally
 
-1. Install pytest using `install.{sh,bat,ps1,fish} --enable-pytest`.
+1. Install pytest using `install.{sh,bat,ps1,fish} --enable-ci`.
 1. Activate the IDF shell environment using `export.{sh,bat,ps1,fish}`.
 1. To run all the tests, go to `$IDF_PATH/tools/test_build_system` directory, then run:
     ```

tools/test_build_system/pytest.ini

@@ -14,6 +14,9 @@ junit_family = xunit1
 junit_logging = stdout
 junit_log_passing_tests = False
 
+filterwarnings =
+    ignore::pytest.PytestExperimentalApiWarning
+
 ## !! When adding new markers, don't forget to update also the tools\test_build_system\README.md !!
 markers =
     test_app_copy: specify relative path of the app to copy, and the prefix of the destination directory name