Add i18n composite action to generate taxonomy and page title strings

.github/workflows/i18n.yml

@@ -0,0 +1,27 @@
+name: Translate Strings
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 6,18 * * *'
+
+jobs:
+  translation-strings:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
+
+      - name: i18n
+        uses: WordPress/wporg-repo-tools/.github/actions/i18n@try/i18n-action
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          args: --taxonomies=post_tag,category --post_types=page --url=https://wordpress.org/themes/wp-json/wp/v2/ --textdomain=wporg-themes
+
+      - name: Commit and push
+        # Using a specific hash here instead of a tagged version, for risk mitigation, since this action modifies our repo.
+        uses: actions-js/push@a52398fac807b0c1e5f1492c969b477c8560a0ba # 1.3
+        with:
+            github_token: ${{ secrets.GITHUB_TOKEN }}
+            branch: trunk
+            message: 'Update translation strings'