refactor: update action reference to external repository

Author: IShix-g

.github/workflows/reusable-build-package.yaml

@@ -152,7 +152,7 @@ jobs:
           buildMethod: ${{ inputs.build-method }}
           customParameters: ${{ inputs.custom-parameters }}
 
-      - uses: ./.github/actions/check-metas
+      - uses: IShix-g/Unity-GitHubActions/.github/actions/check-metas@main
         with:
           directory: ${{ inputs.project-path }}
 

.github/workflows/reusable-unity-test.yaml

@@ -123,7 +123,7 @@ jobs:
           checkName: ${{ matrix.testMode }} Test Results
           coverageOptions: ${{ inputs.coverage-options }}
 
-      - uses: ./.github/actions/check-metas
+      - uses: IShix-g/Unity-GitHubActions/.github/actions/check-metas@main
         with:
           directory: ${{ inputs.project-path }}