Use ${{github.action_path}}

Signed-off-by: Brian J. Murrell <[email protected]>

action.yml

@@ -8,7 +8,7 @@ runs:
   using: "composite"
   steps:
     - run: |
-        echo '${{ inputs.commit-message }}' | get_commit_pragmas >> $GITHUB_ENV
+        echo '${{ inputs.commit-message }}' | ${{github.action_path}}/get_commit_pragmas >> $GITHUB_ENV
         echo 'Identified pragmas:'
         cat $GITHUB_ENV
       shell: bash