fix: use github secret

Author: CasLubbers

.github/workflows/build-and-push.yml

@@ -44,8 +44,8 @@ jobs:
         uses: docker/login-action@v3
         with:
           registry: ${{ env.CACHE_REGISTRY }}
-          username: ${{ env.BOT_USERNAME }}
-          password: '${{ secrets.BOT_TOKEN }}'
+          username: ${{ github.actor }}
+          password: '${{ secrets.GITHUB_TOKEN }}'
       - name: CI tests, image build and push tag for main or branch
         uses: docker/build-push-action@v6
         with: