Add tests for commit count on releases page

[oliverpool]

should fail until #24148 is merged

To add relevant test for commit count on releases pages, I first had to add some commits to the user2/repo1.

Graph before e4ae72b6984a27a9ebcf074fd77e9c1f0f6a9e67

Graph after e4ae72b6984a27a9ebcf074fd77e9c1f0f6a9e67

This allows to have a positive number of commits since a release (release v0.1 in this case).

[techknowlogick]

As this is a test in relation to the other PR could you combine the two?

[oliverpool]

@techknowlogick ideally yes. However adding the test is quite challenging (I could add one "quickly", but showing -9 commits to master seems wrong).

I would prefer for the test not to delay the bugfix.
The goal of this test is also to easily be extended for #24145

[oliverpool]

Modifying the existing tests is to cumbersome.

I add a dedicated user2/repo-release test repository (directly in #24148)