fix typo in workflow options for llvmdev_build.yml

Author: swap357

.github/workflows/llvmdev_build.yml

@@ -27,7 +27,7 @@ on:
         type: choice
         options:
           - llvmdev
-          - llvmdev_for_wheels
+          - llvmdev_for_wheel
 
 concurrency:
   # Concurrency group that uses the workflow name and PR number if available