Fix Python version specification in workflow file

Author: jmwright

.github/workflows/local-build.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       matrix:
         os: [ 'macos-14' ]  #[ 'ubuntu-22.04', 'macos-11', 'macos-14', 'windows-2019' ]
-        python-version: '3.10'
+        python-version: [ '3.10' ]
 
     steps: