Update Ember Framework Dependencies (#1609)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

packages/ember/package.json

@@ -63,7 +63,7 @@
     "@theemo-config/tsconfig": "workspace:*",
     "@theemo-config/typedoc": "workspace:*",
     "concurrently": "^9.2.1",
-    "ember-source": "~6.7.0",
+    "ember-source": "~6.8.0",
     "eslint": "^9.30.1",
     "eslint-plugin-ember": "^12.5.0",
     "prettier": "^3.5.3",

playground/ember/package.json

@@ -32,7 +32,7 @@
     "@embroider/config-meta-loader": "^1.0.0",
     "@embroider/core": "^4.2.4",
     "@embroider/macros": "^1.19.1",
-    "@embroider/vite": "^1.3.0",
+    "@embroider/vite": "^1.3.3",
     "@glimmer/component": "^2.0.0",
     "@glimmer/tracking": "^1.1.2",
     "@glint/core": "1.5.2",
@@ -64,7 +64,7 @@
     "ember-qunit": "^9.0.4",
     "ember-resolver": "^13.1.1",
     "ember-route-template": "^1.0.3",
-    "ember-source": "~6.7.0",
+    "ember-source": "~6.8.0",
     "ember-template-imports": "^4.3.0",
     "ember-template-lint": "^7.9.0",
     "eslint": "^9.30.1",