docs: remove unused GitHub Actions validation from linter configuration

Author: MariusStorhaug

.github/PSModule.yml

@@ -25,7 +25,6 @@ Linter:
   env:
     VALIDATE_BIOME_FORMAT: false
     VALIDATE_BIOME_LINT: false
-    VALIDATE_GITHUB_ACTIONS_ZIZMOR: true
     VALIDATE_JSCPD: false
     VALIDATE_JSON_PRETTIER: false
     VALIDATE_MARKDOWN_PRETTIER: false