update test_main.py to reflect on py312

Author: atheo89

tests/test_main.py

@@ -343,8 +343,8 @@ def test_files_that_should_be_same_are_same(subtests: pytest_subtests.plugin.Sub
         ],
         "nginx/common.sh": [
             PROJECT_ROOT / "codeserver/ubi9-python-3.12/nginx/root/usr/share/container-scripts/nginx/common.sh",
-            PROJECT_ROOT / "rstudio/c9s-python-3.11/nginx/root/usr/share/container-scripts/nginx/common.sh",
-            PROJECT_ROOT / "rstudio/rhel9-python-3.11/nginx/root/usr/share/container-scripts/nginx/common.sh",
+            PROJECT_ROOT / "rstudio/c9s-python-3.12/nginx/root/usr/share/container-scripts/nginx/common.sh",
+            PROJECT_ROOT / "rstudio/rhel9-python-3.12/nginx/root/usr/share/container-scripts/nginx/common.sh",
         ],
     }
     for group_name, (first_file, *rest) in file_groups.items():