Add Schutzbot and Sonarqube

This adds the ability to use our Schutzbot Gitlab CI and run Sonarqube
scan there. We have pretty much the exact same thing in weldr-client
repo and use it only for Sonarqube. This could also be used in the
future if there is any need to use our own CI.

The added scan is just informative and is by no means supposed to be
used to gate PRs, there will be just one more link to
check the results in case anyone is interested.

.github/workflows/trigger-gitlab.yml

@@ -0,0 +1,33 @@
+# inspired by rhinstaller/anaconda
+
+name: Trigger GitLab CI
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  trigger-gitlab:
+    runs-on: ubuntu-latest
+    env:
+      IMAGEBUILDER_BOT_GITLAB_SSH_KEY: ${{ secrets.IMAGEBUILDER_BOT_GITLAB_SSH_KEY }}
+    steps:
+      - name: Install Dependencies
+        run: |
+          sudo apt install -y jq
+
+      - name: Clone repository
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Push to gitlab
+        run: |
+          mkdir -p ~/.ssh
+          echo "${IMAGEBUILDER_BOT_GITLAB_SSH_KEY}" > ~/.ssh/id_rsa
+          chmod 400 ~/.ssh/id_rsa
+          touch ~/.ssh/known_hosts
+          ssh-keyscan -t rsa gitlab.com >> ~/.ssh/known_hosts
+          git remote add ci git@gitlab.com:redhat/services/products/image-builder/ci/image-builder-frontend.git
+          git push -f ci