Further isolation

Author: Kaniska244

.github/workflows/test-pr.yaml

@@ -121,5 +121,13 @@ jobs:
       - name: "Install latest devcontainer CLI"
         run: npm install -g @devcontainers/cli
 
+      - name: "Isolate scenario '${{ matrix.scenario }}'"
+        run: |
+          sudo apt-get update && sudo apt-get install -y jq
+          sed 's://.*$::' test/docker-in-docker/scenarios.json \
+            | jq '{ "${{ matrix.scenario }}": .["${{ matrix.scenario }}"] }' \
+            > test/docker-in-docker/scenarios.json.tmp
+          mv test/docker-in-docker/scenarios.json.tmp test/docker-in-docker/scenarios.json
+
       - name: "Testing docker-in-docker scenario '${{ matrix.scenario }}'"
         run: devcontainer features test --features docker-in-docker --filter ${{ matrix.scenario }} --skip-autogenerated  .