Pin UCL-MIRSG/.github to a4ee218 (#8)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [UCL-MIRSG/.github](https://togithub.com/UCL-MIRSG/.github) | action |
pinDigest | -> `a4ee218` |

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.github/workflows/linting.yml

@@ -23,7 +23,7 @@ jobs:
     if: github.event.pull_request.draft == false
     runs-on: ubuntu-latest
     steps:
-      - uses: UCL-MIRSG/.github/actions/[email protected]
+      - uses: UCL-MIRSG/.github/actions/linting@a4ee21851bcc006a7e2c198b4565f296313d27cf # v0.25.0
         with:
           ansible-roles-config: ./requirements.yml
           pre-commit-config: ./.pre-commit-config.yaml

.github/workflows/manage-projects.yml

@@ -9,7 +9,7 @@ jobs:
   add-issue-to-project:
     runs-on: ubuntu-latest
     steps:
-      - uses: UCL-MIRSG/.github/actions/[email protected]
+      - uses: UCL-MIRSG/.github/actions/add-to-project@a4ee21851bcc006a7e2c198b4565f296313d27cf # v0.25.0
         with:
           app-id: ${{ secrets.APP_ID }}
           app-pem: ${{ secrets.APP_PEM }}