ci(github): add PR preview url update job in preview workflow

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,8 @@
+## Related Issues
+
+- Resolve MTES-MCT/monitorenv#1
+- Resolve MTES-MCT/monitorfish#1
+
+## Preview URL
+
+_Waiting for deployment..._<!-- AUTOFILLED_PREVIEW_URL -->

.github/workflows/preview.yml

@@ -5,6 +5,9 @@ on: pull_request
 jobs:
   publish:
     runs-on: ubuntu-latest
+    outputs:
+      # https://www.chromatic.com/docs/github-actions#outputs
+      storybookUrl: ${{ steps.publish.outputs.storybookUrl }}
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -18,8 +21,20 @@ jobs:
       - name: Install
         run: yarn
       - name: Publish
+        id: publish
         uses: chromaui/action@v1
         with:
           buildScriptName: preview
           projectToken: ${{ secrets.CHROMATIC_PROJECT_TOKEN }}
           token: ${{ secrets.GH_PAT }}
+
+  update_pull_request:
+    runs-on: ubuntu-latest
+    needs: publish
+    steps:
+      - name: Update Pull Request Preview URL
+        uses: ivangabriele/find-and-replace-pull-request-body@dev
+        with:
+          githubToken: ${{ secrets.GH_PAT }}
+          find: "_Waiting for deployment..._<!-- AUTOFILLED_PREVIEW_URL -->"
+          replace: ${{ needs.publish.outputs.storybookUrl }}