Fix python_version parsing for workers with hyphens in their hostname

(cherry picked from commit 6ba5940)
Co-authored-by: Cursor <cursoragent@cursor.com>

Author: gerrod3

CHANGES/+py-version-parsing.bugfix

@@ -0,0 +1 @@
+Fixed a bug where the `python_version` field was not parsed correctly when Pulp workers had hyphens in their name.

pulp_python/app/utils.py

@@ -1,4 +1,5 @@
 import json
+import os
 import re
 import shutil
 import tempfile
@@ -182,7 +183,7 @@ def get_project_metadata_from_file(filename):
     else:
         pyver = ""
         regex = DIST_REGEXES[extensions[pkg_type_index]]
-        if bdist_name := regex.match(filename):
+        if bdist_name := regex.match(os.path.basename(filename)):
             pyver = bdist_name.group("pyver") or ""
         metadata.python_version = pyver
     return metadata