chore: include skill requirements in release package

.github/workflows/reusable-release-skill.yaml

@@ -113,6 +113,12 @@ jobs:
             "copy_dir('tests', os.path.join(PACKAGE, 'tests'), common_ignore)" \
             "copy_dir('evals', os.path.join(PACKAGE, 'evals'), common_ignore)" \
             '' \
+            "req_src = os.path.abspath('requirements.txt')" \
+            "req_dst = os.path.join(PACKAGE, 'requirements.txt')" \
+            'if os.path.isfile(req_src):' \
+            "    shutil.copy2(req_src, req_dst)" \
+            "    print('Copied requirements.txt')" \
+            '' \
             "print('Package top-level entries:')" \
             'for name in sorted(os.listdir(PACKAGE)):' \
             "    print(' -', name)" \