🩹 [Patch]: Add linter environment variables to PSModule.yml (#48)

## Description

This pull request updates the linter configuration in the
`.github/PSModule.yml` file to disable several validation checks during
the linting process. This change is intended to streamline or customize
the linting workflow.

Linter configuration updates:

* Disabled the following validation checks in the `Linter` environment:
`VALIDATE_BIOME_FORMAT`, `VALIDATE_BIOME_LINT`,
`VALIDATE_GITHUB_ACTIONS_ZIZMOR`, `VALIDATE_JSCPD`,
`VALIDATE_JSON_PRETTIER`, `VALIDATE_MARKDOWN_PRETTIER`, and
`VALIDATE_YAML_PRETTIER`. (.github/PSModule.yml)

Author: MariusStorhaug

.github/PSModule.yml

@@ -19,3 +19,12 @@ Test:
 # Build:
 #   Docs:
 #     Skip: true
+Linter:
+  env:
+    VALIDATE_BIOME_FORMAT: false
+    VALIDATE_BIOME_LINT: false
+    VALIDATE_GITHUB_ACTIONS_ZIZMOR: false
+    VALIDATE_JSCPD: false
+    VALIDATE_JSON_PRETTIER: false
+    VALIDATE_MARKDOWN_PRETTIER: false
+    VALIDATE_YAML_PRETTIER: false