ci: bump release-it to 15

[piwysocki]

No description provided.

[mkuthan]

@adrianmroz-allegro, @piter75 - do you remember why we pinned release-it to the specific version? I'm almost sure that we have found a bug in release-it and decided to stay with the old version.

[adrianmroz-allegro]

We pinned this version because newer didn't work with our bamboo action (yeah, long time ago) for releasing consecutive beta versions. Probably releasing new beta with this changes would be enough for a test.

[piwysocki]

Is it not better to install latest 15?

npm install -g release-it@15

[piter75]

we have found a bug in release-it and decided to stay with the old version

newer didn't work (...) for releasing consecutive beta versions

The issue was discovered in release-it v14.0.x and we pinned its version at v13.7.1 then.
We are using v14.6.1 now so the issue must have been fixed in the meantime and the change to a full version was probably simply mechanical ;-)