rollback-backend: bump and move test-utils to devDep

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

plugins/rollbar-backend/package.json

@@ -33,7 +33,6 @@
   "dependencies": {
     "@backstage/backend-common": "^0.10.0",
     "@backstage/config": "^0.1.10",
-    "@backstage/test-utils": "^0.1.24",
     "@types/express": "^4.17.6",
     "camelcase-keys": "^6.2.2",
     "compression": "^1.7.4",
@@ -50,6 +49,7 @@
   },
   "devDependencies": {
     "@backstage/cli": "^0.10.3",
+    "@backstage/test-utils": "^0.2.0",
     "@types/supertest": "^2.0.8",
     "msw": "^0.36.3",
     "supertest": "^6.1.3"