Fix(generator): run functions with empty return

[sonalys]

Description

• Fixes RunAndReturn on functions without return value should not be silently skipped #823
• Regenerated outdated mocks
• Modified generator to run functions with no return values

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Version of Go used when building/testing:

• 1.22
• 1.23

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[LandonTClipp]

This looks great, just a request on layout of tests. I am moving towards having separate subdirectories in pkg/ for each type of issue being solve where the interface, the generated mocks, and the tests all live together. You can see an example of this here: https://github.com/vektra/mockery/tree/master/pkg/fixtures/type_alias

You can see the related .mockery.yaml config here: https://github.com/vektra/mockery/blob/v2.49.0/.mockery.yaml#L97-L110

The reason I'm doing this is to make it easier to grok what tests are using what fixtures and mocks. Keeping all of them in the same place makes this easier. If you can modify this PR to be aligned with this format, I'll merge it. Thanks for the help, it's much appreciated!

[LandonTClipp]

Thank you!