Merge pull request #1 from edwardgronroos/master

chore: run on node 16

Author: peternewman

action.yml

@@ -2,7 +2,7 @@ name: 'sort problem matcher'
 author: 'Peter Newman'
 description: 'Shows GNU sort errors as annotation (with file and code line) in GitHub Actions'
 runs:
-  using: 'node12'
+  using: 'node16'
   main: 'index.js'
 branding:
   icon: 'search'