Limit Windows launcher version check to its interpreter

Exclude only the CPython py.exe version-identity case from RustPython CI. The installed launcher reports its own final version, while RustPython correctly remains alpha. Preserve the other 45 launcher cases and all RustPython version assertions without modifying Lib.

Assisted-by: OpenAI Codex:model identifier unavailable

.github/workflows/ci.yaml

@@ -502,6 +502,9 @@ jobs:
             - '-u all'
             - '--timeout 600'
             - '--dont-add-python-opts'
+            # CPython's installed py.exe reports its own version, not RustPython's.
+            # Keep the remaining launcher integration tests and runtime version checks.
+            - '--ignore test.test_launcher.TestLauncher.test_version'
           env_polluting_tests: []
           skips: []
           timeout: 50