add missing git add

Signed-off-by: Alexander Dahmen <alexander.dahmen@inovex.de>

Author: Fyusel

.github/workflows/upgrade-provider.yaml

@@ -74,6 +74,7 @@ jobs:
         git add --all
         git commit -m "make tfgen"
         make generate_sdks
+        git add --all
         git commit -m "make generate_sdks"
         git push --set-upstream orgin "$BRANCH_NAME"
         gh pr create --title Upgrade terraform-provider-stackit to "$LATEST_TAG" --base main --head "$BRANCH_NAME"