update-deps bot does not send PR for only module diff

[nak3]

The script excludes diff in go.mod, go.sum and modules.txt:

https://github.com/knative-sandbox/knobots/blob/05c5158e8da094a33d708fd7c7d504faed62ca3b/actions/update-deps/entrypoint.sh#L59-L70

so update-deps bot does not create the PR even when deps have diff - e.g. https://github.com/knative-sandbox/knobots/runs/2523678545?check_suite_focus=true did not create PR (please check in Apply work)

Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git checkout -- <file>..." to discard changes in working directory)

	modified:   go.mod
	modified:   go.sum
	modified:   vendor/modules.txt

This is no problem in general as it is just a module name change. But it causes an error in Verify Deps and Codegen actions.

(e.g.) https://github.com/knative-sandbox/net-kourier/pull/509/checks?check_run_id=2515042767

Now I am wondering if update-deps bot should create the PR or .github/workflows/knative-verify.yaml should exclude the module name diff.