chore(stackblitz): update ionic angular deps to hardcoded version (#4036)

Co-authored-by: Brandy Smith <[email protected]>

Author: brandyscarney

static/code/stackblitz/v8/angular/package.json

@@ -15,8 +15,8 @@
     "@angular/platform-browser": "^19.0.0",
     "@angular/platform-browser-dynamic": "^19.0.0",
     "@angular/router": "^19.0.0",
-    "@ionic/angular": "^8.0.0",
-    "@ionic/core": "^8.0.0",
+    "@ionic/angular": "8.4.2",
+    "@ionic/core": "8.4.2",
     "ionicons": "7.4.0",
     "rxjs": "^7.8.1",
     "tslib": "^2.5.0",