fix: jq

Author: ayuskauskas

.github/workflows/build_agent_container.yaml

@@ -59,8 +59,7 @@ jobs:
           export AGENT_VERSION=$(git describe --tags --abbrev=0 2>/dev/null || echo "0.0.0+${{ github.sha }}")
           make docker-build-only agent_version=${AGENT_VERSION}
           cat metadata.json
-          cat metadata.json | jq -r .containerimage.digest
-          echo "digest=$(cat metadata.json | jq -r .containerimage.digest)" >> $GITHUB_OUTPUT
+          echo "digest=$(cat metadata.json | jq -r .\"containerimage.digest\")" >> $GITHUB_OUTPUT
           cat $GITHUB_OUTPUT
         env:
           AGENT_IMAGE: ${{env.IMAGE_NAME}}/agent