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

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 ..." to update what will be committed)
(use "git checkout -- ..." 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.

Start with actions/update-deps/entrypoint.sh lines 59-70 and reproduce the Apply work behavior from the linked workflow run. Then inspect .github/workflows/knative-verify.yaml to compare handling of module-only changes. Done means the chosen behavior is implemented and the relevant verification workflow no longer fails for this dependency diff.

Written by the indexing model from the issue text.