reinits versioneer and adds missing cmdclass to setup.py

Author: andhus

setup.py

@@ -17,6 +17,7 @@
 setup(
     name='dirhash',
     version=versioneer.get_version(),
+    cmdclass=versioneer.get_cmdclass(),
     description=DESCRIPTION,
     long_description=long_description,
     long_description_content_type="text/markdown",

src/dirhash/_version.py

@@ -51,7 +51,7 @@ def get_config() -> VersioneerConfig:
     cfg = VersioneerConfig()
     cfg.VCS = "git"
     cfg.style = "pep440"
-    cfg.tag_prefix = ""
+    cfg.tag_prefix = "v"
     cfg.parentdir_prefix = "dirhash-"
     cfg.versionfile_source = "src/dirhash/_version.py"
     cfg.verbose = False