🌐(CI) build mails when crowdin_upload workflow

When we were executing the crowdin_upload workflow,
we were not building the mail template to dispatch it
to the backend. It resulted in the mail not being
totally translated. This commit fixes that issue
by adding the build mail step to the crowdin_upload.
To do so, we added it to the dependencies workflow.
"dependencies" workflow is callable by other
workflows that need a specific job.

.github/workflows/crowdin_upload.yml

@@ -7,13 +7,15 @@ on:
       - main
 
 jobs:
-  install-front:
-    uses: ./.github/workflows/front-dependencies-installation.yml
+  install-dependencies:
+    uses: ./.github/workflows/dependencies.yml
     with:
       node_version: '20.x'
+      with-front-dependencies-installation: true
+      with-build_mails: true
 
   synchronize-with-crowdin:
-    needs: install-front
+    needs: install-dependencies
     runs-on: ubuntu-latest
 
     steps:
@@ -29,6 +31,13 @@ jobs:
       - name: Install development dependencies
         run: pip install --user .
         working-directory: src/backend
+      - name: Restore the mail templates
+        uses: actions/cache@v4
+        id: mail-templates
+        with:
+          path: "src/backend/core/templates/mail"
+          key: mail-templates-${{ hashFiles('src/mail/mjml') }}
+          fail-on-cache-miss: true
       - name: Install gettext
         run: |
           sudo apt-get update