Get API-view bot working for multi-module PR's

[gracewilcox]

Currently, when a PR contains more than one module, the git-actions bot does not automatically attach an api view to the PR like it should.

Example of a PR with a missing api view: #25395

[benbp]

The issue seems to be for PRs that include changes to multiple service directories. We are writing a nested sdk/sdk directory which messes up the API view path calculations.