Make license compliance failure a RuntimeError

Author: agriyakhetarpal

Diff for: make_wheels.py

@@ -196,7 +196,7 @@ def write_ziglang_wheel(out_dir, *, version, platform, archive):
     # 2. Check for potentially missing license files
     extra_licenses = potential_extra_licenses - set(required_license_paths)
     if extra_licenses:
-        print(f"\033[93mWarning: found additional potential license files in the Zig archive but not included in the metadata: {', '.join(sorted(extra_licenses))} "
+        raise RuntimeError(f"\033[93mFound additional potential license files in the Zig archive but not included in the metadata: {', '.join(sorted(extra_licenses))} "
               "\nPlease consider adding these to the license paths if they should be included.\033[0m")
 
     with open('README.pypi.md') as f: