deps: coordinated Angular 21 -> 22 upgrade for angular samples

Bump all @angular/* packages to 22.0.0 together in both the login-pkce
and token-refresh Angular samples. Supersedes the single-package
Dependabot PRs (#211 @angular/cli, #213 @angular/compiler), which would
have left the workspace on a split major version and broken the build.

Note: Angular 22 raises the Node floor to >=22.22.3. CI uses
setup-node "22" (latest 22.x patch), which clears it.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: ksroda-sa

samples/angular/login-pkce/package.json

@@ -14,20 +14,20 @@
     "format:check": "prettier --check --ignore-path=../../../.gitignore ."
   },
   "dependencies": {
-    "@angular/common": "21.2.15",
-    "@angular/compiler": "21.2.15",
-    "@angular/core": "21.2.15",
-    "@angular/forms": "21.2.15",
-    "@angular/platform-browser": "21.2.15",
-    "@angular/router": "21.2.15",
+    "@angular/common": "22.0.0",
+    "@angular/compiler": "22.0.0",
+    "@angular/core": "22.0.0",
+    "@angular/forms": "22.0.0",
+    "@angular/platform-browser": "22.0.0",
+    "@angular/router": "22.0.0",
     "angular-auth-oidc-client": "21.0.2",
     "rxjs": "7.8.2",
     "tslib": "2.8.1"
   },
   "devDependencies": {
-    "@angular/build": "21.2.13",
-    "@angular/cli": "21.2.13",
-    "@angular/compiler-cli": "21.2.15",
+    "@angular/build": "22.0.0",
+    "@angular/cli": "22.0.0",
+    "@angular/compiler-cli": "22.0.0",
     "jsdom": "29.1.1",
     "prettier": "3.8.3",
     "typescript": "6.0.3",