Fixes: #9507 Issue link: https://github.com/spring-projects/spring-integration/issues/9507 * Deprecate `PythonScriptExecutor` in favor of `PolyglotScriptExecutor` with a `python` as language * Add handling for `PolyglotWrapper` return type of the script evaluation * Rework `DeriveLanguageFromExtensionTests.testParseLanguage()` to the `@ParameterizedTest`