GH Actions: move dependencies caching into custom action

.github/workflows/deploy.yml

@@ -22,56 +22,3 @@ jobs:
         run: |
           npm run lint
           npm run lint-next
-
-      - name: Run tests
-        id: run-tests
-        run: npm run test
-
-      - name: Upload test report
-        if: failure() && steps.run-tests.outcome == 'failure'
-        uses: actions/upload-artifact@v4
-        with:
-          name: test-report
-          path: test.json
-
-  build:
-    needs: run-tests
-    runs-on: ubuntu-latest
-    steps:
-      - name: Get code
-        uses: actions/checkout@v3
-
-      - name: Load & cache dependencies
-        uses: ./.github/actions/cached-deps
-
-      - name: Build project
-        run: npm run build
-
-      - name: Upload artifacts
-        uses: actions/upload-artifact@v4
-        with:
-          name: dist
-          path: .next
-
-  deploy:
-    needs: build
-    env:
-      STRAVA_API_BASE_URL_2: https://www.strava.com
-      DB_USER_NAME: ${{ secrets.DB_USER_NAME }}
-    runs-on: ubuntu-latest
-    steps:
-      - name: Download artifacts
-        uses: actions/download-artifact@v4
-        with:
-          name: dist
-
-      - name: Output contents
-        run: ls
-
-      - name: Output information
-        run: |
-          echo "Using API: ${{ env.STRAVA_API_BASE_URL }}"
-          echo "Using API(option #2): $STRAVA_API_BASE_URL_2"
-
-      - name: Deploy
-        run: echo "Deploying..."