chore: rewind time for unreleased libraries (googleapis#8164)

Both of these libraries were never published to npm at the version
they declare. Let's pretend that release never happened in that
case.

- googleapis/google-cloud-node-core#821
- googleapis/google-cloud-node-core#821

Author: codyoss

.release-please-manifest.json

@@ -2,15 +2,15 @@
   "core/common": "6.0.0",
   "core/dev-packages/jsdoc-fresh": "5.0.2",
   "core/dev-packages/jsdoc-region-tag": "4.0.1",
-  "core/dev-packages/pack-n-play": "4.2.2",
+  "core/dev-packages/pack-n-play": "4.2.1",
   "core/generator/gapic-generator-typescript": "4.11.13",
   "core/packages/gax": "5.0.6",
   "core/packages/gaxios": "7.1.4",
   "core/packages/gcp-metadata": "8.1.2",
   "core/packages/google-auth-library-nodejs": "10.6.2",
   "core/packages/logging-utils": "1.1.3",
   "core/packages/nodejs-googleapis-common": "8.0.1",
-  "core/packages/nodejs-proto-files": "6.0.0",
+  "core/packages/nodejs-proto-files": "5.0.1",
   "core/packages/proto3-json-serializer-nodejs": "3.0.4",
   "core/packages/retry-request": "8.0.2",
   "core/packages/teeny-request": "10.1.2",

core/dev-packages/pack-n-play/CHANGELOG.md

@@ -1,13 +1,5 @@
 # Changelog
 
-## [4.2.2](https://github.com/googleapis/google-cloud-node-core/compare/pack-n-play-v4.2.1...pack-n-play-v4.2.2) (2025-12-17)
-
-
-### Bug Fixes
-
-* **pack-n-play:** Replace rimraf with native Node.js fs.promises.rm ([a10146b](https://github.com/googleapis/google-cloud-node-core/commit/a10146b6e1fe66c5b3b0de7d86639dd81b232236))
-* **pack-n-play:** Replace rimraf with native Node.js fs.promises.rm ([e686c20](https://github.com/googleapis/google-cloud-node-core/commit/e686c20a0b71436e961d2696ccdfd3e7382426fb))
-
 ## [4.2.1](https://github.com/googleapis/google-cloud-node-core/compare/pack-n-play-v4.2.0...pack-n-play-v4.2.1) (2025-10-07)
 
 

core/dev-packages/pack-n-play/package.json

@@ -1,7 +1,7 @@
 {
   "name": "pack-n-play",
   "description": "Ensure your library installs and compiles",
-  "version": "4.2.2",
+  "version": "4.2.1",
   "author": "Google LLC",
   "license": "Apache-2.0",
   "repository": {

core/packages/nodejs-proto-files/CHANGELOG.md

@@ -4,22 +4,6 @@
 
 [1]: https://www.npmjs.com/package/google-proto-files?activeTab=versions
 
-## [6.0.0](https://github.com/googleapis/google-cloud-node-core/compare/google-proto-files-v5.0.1...google-proto-files-v6.0.0) (2025-12-17)
-
-
-### ⚠ BREAKING CHANGES
-
-* update library to Node 18 ([#508](https://github.com/googleapis/google-cloud-node-core/issues/508))
-
-### Bug Fixes
-
-* **deps:** Update dependency protobufjs to v7.5.4 ([#524](https://github.com/googleapis/google-cloud-node-core/issues/524)) ([80c71bc](https://github.com/googleapis/google-cloud-node-core/commit/80c71bcca642b8b85349454671955a6529a2e28d))
-
-
-### Miscellaneous Chores
-
-* Update library to Node 18 ([#508](https://github.com/googleapis/google-cloud-node-core/issues/508)) ([5a0d43f](https://github.com/googleapis/google-cloud-node-core/commit/5a0d43f4525577855b0b8beed28d3f043e478eaa))
-
 ## [5.0.1](https://github.com/googleapis/nodejs-proto-files/compare/v5.0.0...v5.0.1) (2025-08-21)
 
 

core/packages/nodejs-proto-files/package.json

@@ -1,7 +1,7 @@
 {
   "name": "google-proto-files",
   "description": "All of the Google API's protocol buffer files",
-  "version": "6.0.0",
+  "version": "5.0.1",
   "license": "Apache-2.0",
   "author": "google-proto-files project authors",
   "engines": {