fix: correct environment variable name for GitHub Actions validation

Author: MariusStorhaug

.github/workflows/Linter.yml

@@ -29,7 +29,7 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ github.token }}
           VALIDATE_BIOME_FORMAT: false
-          VALIDATE_GITHUB_ACTIONS_ZIZMOR: false
+          VALIDATE_GITHUB_ACTIONS: false
           VALIDATE_JSCPD: false
           VALIDATE_JSON_PRETTIER: false
           VALIDATE_MARKDOWN_PRETTIER: false