fix commit author

Author: mscheltienne

.github/workflows/bot.yaml

@@ -23,14 +23,21 @@ jobs:
         with:
           app-id: ${{ secrets.UV_LOCK_UPGRADER_APP_ID }}
           private-key: ${{ secrets.UV_LOCK_UPGRADER_APP_PRIVATE_KEY }}
+      - name: Get GitHub App User ID
+        id: get-user-id
+        run: echo "user-id=$(gh api "/users/${{ steps.app-token.outputs.app-slug }}[bot]" --jq .id)" >> "$GITHUB_OUTPUT"
+        env:
+          GH_TOKEN: ${{ steps.app-token.outputs.token }}
       - uses: actions/checkout@v4
       - uses: astral-sh/setup-uv@v6
       - run: uv lock --upgrade
       - uses: peter-evans/create-pull-request@v7
+        env:
+          AUTHOR: "${{ steps.app-token.outputs.app-slug }}[bot] <${{ steps.get-user-id.outputs.user-id }}+${{ steps.app-token.outputs.app-slug }}[bot]@users.noreply.github.com>"
         with:
           token: ${{ steps.app-token.outputs.token }}
-          author: "uv-lock-upgrader[bot] <uv-lock-upgrader[bot]@users.noreply.github.com>"
-          committer: "uv-lock-upgrader[bot] <uv-lock-upgrader[bot]@users.noreply.github.com>"
+          author: ${{ env.AUTHOR }}
+          committer: ${{ env.AUTHOR }}
           commit-message: "chore: upgrade uv.lock"
           title: "chore: upgrade uv.lock"
           body: This PR updates the uv.lock file with the latest dependency versions.