chore: use custom sticky-comment action (#1618)

Author: bo0tzz

.github/workflows/flux-diff.yml

@@ -31,11 +31,10 @@ jobs:
 
       - if: ${{ steps.diff.outputs.diff != '' }}
         name: Add comment
-        uses: mshick/add-pr-comment@8e4927817251f1ff60c001f04568532b38e0b4a0 # v3.11.0
+        uses: immich-app/devtools/actions/sticky-comment@0135acd12ad9f3369b94a2aa3c0ae8c835a4e926 # sticky-comment-action-v1.0.0
         with:
-          message-id: "${{ github.event.pull_request.number }}/${{ matrix.path }}/${{ matrix.resource }}"
-          message-failure: Diff was not successful
-          message: |
+          id: "flux-diff/${{ matrix.path }}/${{ matrix.resource }}"
+          body: |
             ```diff
             ${{ steps.diff.outputs.diff }}
             ```