`frizbee actions` should update composite actions by default too

[woodruffw]

Describe the issue

Hi there!

I ran frizbee actions on a repository and, as expected, it modified all of my workflows to use hash-pinned references where possible. Awesome!

However, I also had a composite action definition (i.e. an action.yml) in the same directory, and frizbee actions did not modify my action's uses: clauses.

Expected behavior

I expected frizbee actions to rewrite both .github/workflows/*.ya?ml and **/action.yml.

Actual behavior

I had to explicitly run frizbee actions action.yml to get it to modify the composite action stored in the same repository.

To Reproduce

Create a repository containing both workflows and composite action definitions. Run frizbee actions, and observe that the former are updated while the latter are not.

What version are you using?

v0.1.7