fix: packages/backend-next/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-BABELRUNTIME-10044504

Author: snyk-bot

packages/backend-next/package.json

@@ -26,30 +26,30 @@
   },
   "dependencies": {
     "@backstage/backend-defaults": "workspace:^",
-    "@backstage/backend-tasks": "workspace:^",
+    "@backstage/backend-tasks": "0.6.1",
     "@backstage/plugin-adr-backend": "workspace:^",
-    "@backstage/plugin-app-backend": "workspace:^",
+    "@backstage/plugin-app-backend": "0.1.1",
     "@backstage/plugin-auth-node": "workspace:^",
     "@backstage/plugin-azure-devops-backend": "workspace:^",
     "@backstage/plugin-badges-backend": "workspace:^",
-    "@backstage/plugin-catalog-backend": "workspace:^",
+    "@backstage/plugin-catalog-backend": "0.1.1",
     "@backstage/plugin-catalog-backend-module-unprocessed": "workspace:^",
     "@backstage/plugin-devtools-backend": "workspace:^",
     "@backstage/plugin-entity-feedback-backend": "workspace:^",
     "@backstage/plugin-kubernetes-backend": "workspace:^",
     "@backstage/plugin-lighthouse-backend": "workspace:^",
     "@backstage/plugin-linguist-backend": "workspace:^",
     "@backstage/plugin-permission-backend": "workspace:^",
-    "@backstage/plugin-permission-common": "workspace:^",
+    "@backstage/plugin-permission-common": "0.1.0",
     "@backstage/plugin-permission-node": "workspace:^",
-    "@backstage/plugin-scaffolder-backend": "workspace:^",
+    "@backstage/plugin-scaffolder-backend": "0.1.1",
     "@backstage/plugin-search-backend": "workspace:^",
     "@backstage/plugin-search-backend-module-catalog": "workspace:^",
     "@backstage/plugin-search-backend-module-explore": "workspace:^",
     "@backstage/plugin-search-backend-module-techdocs": "workspace:^",
     "@backstage/plugin-search-backend-node": "workspace:^",
     "@backstage/plugin-techdocs-backend": "workspace:^",
-    "@backstage/plugin-todo-backend": "workspace:^"
+    "@backstage/plugin-todo-backend": "0.1.0"
   },
   "devDependencies": {
     "@backstage/cli": "workspace:^"