chore(deps-dev): bump testcontainers in /e2e-studio

Bumps [testcontainers](https://github.com/testcontainers/testcontainers-node) from 11.11.0 to 11.12.0.
- [Release notes](https://github.com/testcontainers/testcontainers-node/releases)
- [Commits](testcontainers/testcontainers-node@v11.11.0...v11.12.0)

---
updated-dependencies:
- dependency-name: testcontainers
  dependency-version: 11.12.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

e2e-studio/package-lock.json

@@ -12,7 +12,7 @@
   },
   "devDependencies": {
     "@playwright/test": "^1.58.2",
-    "testcontainers": "^11.11.0",
+    "testcontainers": "^11.12.0",
     "@types/node": "^25.3.0",
     "typescript": "^5.9.3"
   },