chore: use centralized .mo action (#62)

.github/workflows/update-mo.yml

@@ -1,7 +1,8 @@
-name: Update Translations
+name: Update .mo files
 
 on:
   pull_request:
+    branches: [ dev ]
     paths:
       - 'languages/*.po'
   workflow_dispatch:
@@ -10,28 +11,4 @@ jobs:
   update-mo-files:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-        with:
-          ref: ${{ github.head_ref }}
-          fetch-depth: 0
-
-      - name: Set up PHP
-        uses: shivammathur/setup-php@v2
-        with:
-          php-version: '8.1'
-          tools: wp-cli/wp-cli-bundle
-
-      - name: Generate .mo files from .po files
-        run: wp i18n make-mo languages
-
-      - name: Configure Git
-        run: |
-          git config --global user.email "actions@github.com"
-          git config --global user.name "GitHub Actions"
-
-      - name: Commit and push .mo files
-        run: |
-          git add -A
-          git commit -m "chore: update .mo files"
-          git push origin ${{ github.head_ref }}
+      - uses: pressbooks/reusable-workflows/.github/workflows/update-translations.yml@dev