Update dependency @angular-builders/jest to v20 (#195)

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

Author: renovate[bot]

package-lock.json

@@ -23,7 +23,7 @@
     "zone.js": "0.15.1"
   },
   "devDependencies": {
-    "@angular-builders/jest": "19.0.1",
+    "@angular-builders/jest": "20.0.0",
     "@angular/build": "^20.0.1",
     "@angular/cli": "20.0.3",
     "@angular/compiler-cli": "20.0.4",