Merge pull request #19095 from ckeditor/ck/8276-code-owners-lock

Define owners for lock-oriented files

Author: pomek

.github/CODEOWNERS

@@ -0,0 +1,5 @@
+scripts/release/utils/config.js     @ckeditor/ckeditor-5-admins
+
+packages/*/package.json             @ckeditor/ckeditor-5-platform
+package.json                        @ckeditor/ckeditor-5-platform
+pnpm-lock.yaml                      @ckeditor/ckeditor-5-platform