chore(deps-dev): bump the ember-core group across 1 directory with 3 updates

Bumps the ember-core group with 3 updates in the /frontend directory: [ember-cli](https://github.com/ember-cli/ember-cli), [ember-data](https://github.com/emberjs/data/tree/HEAD/packages/-ember-data) and [ember-source](https://github.com/emberjs/ember.js).


Updates `ember-cli` from 5.4.2 to 6.2.3
- [Changelog](https://github.com/ember-cli/ember-cli/blob/master/CHANGELOG.md)
- [Commits](ember-cli/ember-cli@v5.4.2...v6.2.3)

Updates `ember-data` from 5.3.4 to 5.3.11
- [Changelog](https://github.com/emberjs/data/blob/main/packages/-ember-data/CHANGELOG.md)
- [Commits](https://github.com/emberjs/data/commits/v5.3.11/packages/-ember-data)

Updates `ember-source` from 5.4.1 to 6.2.0
- [Changelog](https://github.com/emberjs/ember.js/blob/main/CHANGELOG.md)
- [Commits](https://github.com/emberjs/ember.js/commits)

---
updated-dependencies:
- dependency-name: ember-cli
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: ember-core
- dependency-name: ember-data
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: ember-core
- dependency-name: ember-source
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: ember-core
...

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

Author: dependabot[bot]

frontend/package.json

@@ -55,7 +55,7 @@
     "ember-can": "git+https://github.com/anehx/ember-can#1755f0fb2c1026b57f2984d065f1c8f10835e935&path:/ember-can",
     "ember-changeset": "4.1.2",
     "ember-changeset-validations": "4.1.1",
-    "ember-cli": "~5.4.0",
+    "ember-cli": "~6.2.3",
     "ember-cli-app-version": "6.0.1",
     "ember-cli-babel": "7.26.11",
     "ember-cli-chart": "3.7.2",
@@ -70,7 +70,7 @@
     "ember-cli-sri": "2.1.1",
     "ember-cli-terser": "4.0.2",
     "ember-concurrency": "^4.0.2",
-    "ember-data": "5.3.4",
+    "ember-data": "5.3.11",
     "ember-decorators": "6.1.1",
     "ember-event-helpers": "^0.1.1",
     "ember-fetch": "8.1.2",
@@ -96,7 +96,7 @@
     "ember-simple-auth": "6.0.0",
     "ember-simple-auth-oidc": "7.0.4",
     "ember-sinon-qunit": "^6.0.0",
-    "ember-source": "~5.4.0",
+    "ember-source": "~6.2.0",
     "ember-style-modifier": "^1.0.0",
     "ember-template-lint": "~7.0.1",
     "ember-template-lint-plugin-prettier": "^5.0.0",