chore(deps): bump @apollo/client from 3.12.5 to 3.12.6

Bumps [@apollo/client](https://github.com/apollographql/apollo-client) from 3.12.5 to 3.12.6.
- [Release notes](https://github.com/apollographql/apollo-client/releases)
- [Changelog](https://github.com/apollographql/apollo-client/blob/main/CHANGELOG.md)
- [Commits](apollographql/apollo-client@v3.12.5...v3.12.6)

---
updated-dependencies:
- dependency-name: "@apollo/client"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

packages/core/package.json

@@ -13,7 +13,7 @@
     "test:ember-compatibility": "ember try:each"
   },
   "dependencies": {
-    "@apollo/client": "^3.12.5",
+    "@apollo/client": "^3.12.6",
     "@babel/core": "^7.26.0",
     "@ember/string": "^3.1.1 || ^4.0.0",
     "@embroider/macros": "^1.16.10",