fix: replace deprecated post-release version scheme with no-guess-dev

post-release generates invalid PEP 440 versions (e.g. 0.2.0.dev4.post1)
when commits exist past a dev-suffixed tag.

no-guess-dev is the documented replacement per setuptools-scm docs:
- On tag: produces exact version (e.g. 0.2.0)
- Past tag: produces {tag}.post1.devN (valid PEP 440)

Also removed fallback_version as it is no longer needed.

Author: RonanB96

pyproject.toml

@@ -133,7 +133,7 @@ path = "hatch_build.py"
 source = "vcs"
 
 [tool.hatch.version.raw-options]
-version_scheme = "post-release"
+version_scheme = "no-guess-dev"
 local_scheme = "node-and-date"
 
 [tool.hatch.build.hooks.vcs]