v0.3.0

From commit c6eeaac (corresponding to v0.2.1-dev5, according to Poetry):

1. 28e9b87: feat: Merge pull request #3 from unibo-dtm-se/feature/trigonometry
   • minor change: feat found in description
   • dev change: commit is described as feat
2. d2ef2fb: fix: bug in how cos and sin were implemented
   • patch change: fix found in description
   • dev change: commit is described as fix
3. c7e11cb: feat: implement cos and sin
   • minor change: feat found in description
   • dev change: commit is described as feat
4. 28d0303: test: add tests for trigonometric functionalities
   • dev change: commit is described as test
5. 3795f39: chore(release): v.0.2.1-dev5 [skip ci]
   • dev change: commit is described as chore(release)
6. 1c3cde6: chore(ci): let the author of the pre-releasing commit author the automatic release commit
   • dev change: commit is described as chore(ci)
7. b5102a6: chore(ci): commit & push new version upon release
   • dev change: commit is described as chore(ci)
8. 487678a: chore(build): fix computation of version number in bump_version.py
   • dev change: commit is described as chore(build)
9. d50786c: chore(build): fix rendering of changelog to make it even more readable
   • dev change: commit is described as chore(build)
10. 813e3c4: chore(build): improve changelog generation in markdown format

• dev change: commit is described as chore(build)

Total commits: 10, of which:

• 0 major changes
• 2 minor changes
• 1 patch changes

hence, next version is: 0.3.0