ci: run jsdom tests on supported Node runtime

.gitlab-ci.yml

@@ -45,8 +45,12 @@ type-check:
 # -- Test Stage --
 
 test:
+    image: node:22.22.2
     extends: .node_setup
     stage: test
+    before_script:
+        - npm install --global bun@1.4.2
+        - bun install --frozen-lockfile
     script:
         - bun run test --watch=false --coverage
     artifacts: