[CI] Fixed missing clang-17 changes (#35610)

Closes #35610

COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/35610 from veblush:clang-17-missing e59bca5798
PiperOrigin-RevId: 599870245

tools/run_tests/run_tests.py

@@ -1744,7 +1744,7 @@ argp.add_argument(
         "gcc12_openssl309",
         "gcc_musl",
         "clang6",
-        "clang16",
+        "clang17",
         # TODO: Automatically populate from supported version
         "python3.7",
         "python3.8",

tools/run_tests/run_tests_matrix.py

@@ -362,7 +362,7 @@ def _create_portability_test_jobs(
         "gcc12_openssl309",
         "gcc_musl",
         "clang6",
-        "clang16",
+        "clang17",
     ]:
         test_jobs += _generate_jobs(
             languages=["c", "c++"],