Allow the translations to be self-maintained by language owners (#50240)

Co-authored-by: Orta Therox <github@orta.io>

.github/workflows/CodeOwnersSelfMerge.yml

@@ -0,0 +1,18 @@
+name: Codeowners merging
+on:
+  pull_request_target: { types: [opened] }
+  issue_comment: { types: [created] }
+  pull_request_review: { types: [submitted] }
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v1
+      - name: Run Codeowners merge check
+        uses: OSS-Docs-Tools/code-owner-self-merge@v1
+        with:
+            cwd: './docs'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

docs/CODEOWNERS

@@ -0,0 +1,8 @@
+# See https://github.com/OSS-Docs-Tools/code-owner-self-merge
+
+README.ru.md @demensky @virzak [translation] [README-RU]
+README.cn.md @Kerminate @kunl [translation] [README-CN]
+README.ja.md @MaySoMusician @sasurau4 [translation] [README-JA]
+README.ko.md @Ailrun @cimfalab [translation] [README-KO]
+README.es.md @LuigiBaute @kant [translation] [README-ES]
+README.pt.md @thzoid @cdias900  [translation] [README-PT]