Update jetify-com/devbox-install-action action to v0.15.0 (#558)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -111,7 +111,7 @@ jobs:
           password: ${{ secrets.DOCKER_PASSWORD }}
 
       - name: Install devbox
-        uses: jetify-com/devbox-install-action@v0.14.0
+        uses: jetify-com/devbox-install-action@v0.15.0
 
       - name: Setup CAPL Management Kind Cluster and CAPL Child Cluster For Testing
         run: devbox run mgmt-and-capl-cluster