chore(gitlab-ci): add test container job

.gitlab-ci.yml

@@ -240,6 +240,36 @@ container:
   rules: &release-rules
     - if: $CI_COMMIT_TAG =~ /^v/
 
+test container:
+  stage: container:build
+  script:
+    - xzcat uniworx:exe:uniworx.nar.xz | nix-store --import
+    - source .gitlab-ci/construct-flake-url.sh
+    - cp -pr --reflink=auto -L $(nix build --print-out-paths  "${FLAKE}#uniworxTestDocker") uniworx.tar.gz
+  before_script: *nix-before
+  needs:
+    - job: node dependencies # transitive
+      artifacts: false
+    - job: well known # transitive
+      artifacts: false
+    - job: frontend # tranitive
+      artifacts: false
+    - job: uniworx:lib:uniworx # transitive
+      artifacts: false
+    - job: uniworx:exe:uniworx
+      artifacts: true
+    - job: check # sanity
+      artifacts: false
+  artifacts:
+    paths:
+      - uniworx.tar.gz
+    name: "${CI_JOB_NAME}-${CI_COMMIT_SHORT_SHA}"
+    expire_in: "1 day"
+  retry: 2
+  interruptible: true
+  rules: &test-release-rules
+    - if: $CI_COMMIT_TAG =~ /^v/ && $CI_COMMIT_BRANCH == "test"
+
 parse changelog:
   stage: prepare release
   needs: