fix: Update system_test_python_versions (#1096)

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: mukund-ananthu

CONTRIBUTING.rst

@@ -143,12 +143,12 @@ Running System Tests
    $ nox -s system
 
    # Run a single system test
-   $ nox -s system-3.10 -- -k <name of test>
+   $ nox -s system-3.12 -- -k <name of test>
 
 
   .. note::
 
-      System tests are only configured to run under Python 3.10.
+      System tests are only configured to run under Python 3.12.
       For expediency, we do not run them in older versions of Python 3.
 
   This alone will not run the tests. You'll need to change some local

noxfile.py

@@ -50,7 +50,7 @@
 UNIT_TEST_EXTRAS: List[str] = []
 UNIT_TEST_EXTRAS_BY_PYTHON: Dict[str, List[str]] = {}
 
-SYSTEM_TEST_PYTHON_VERSIONS: List[str] = ["3.10"]
+SYSTEM_TEST_PYTHON_VERSIONS: List[str] = ["3.12"]
 SYSTEM_TEST_STANDARD_DEPENDENCIES: List[str] = [
     "mock",
     "pytest",

owlbot.py

@@ -337,7 +337,7 @@
     cov_level=100,
     versions=gcp.common.detect_versions(path="./google", default_first=True),
     unit_test_python_versions=["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"],
-    system_test_python_versions=["3.10"],
+    system_test_python_versions=["3.12"],
     system_test_external_dependencies=["psutil","flaky"],
 )
 s.move(templated_files, excludes=[".coveragerc", ".github/release-please.yml", "README.rst", "docs/index.rst"])

pytest.ini

@@ -11,4 +11,6 @@ filterwarnings =
     # Remove warning once https://github.com/googleapis/gapic-generator-python/issues/1938 is fixed
     ignore:The return_immediately flag is deprecated and should be set to False.:DeprecationWarning
     # Remove warning once https://github.com/googleapis/gapic-generator-python/issues/1939 is fixed
-    ignore:get_mtls_endpoint_and_cert_source is deprecated.:DeprecationWarning
+    ignore:get_mtls_endpoint_and_cert_source is deprecated.:DeprecationWarning
+    # Remove warning once https://github.com/grpc/grpc/issues/35974 is fixed
+    ignore:unclosed:ResourceWarning