Use ${{github.action_path}}

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

action.yml

@@ -10,7 +10,7 @@ runs:
     - run: |
         echo '${{ inputs.commit-message }}' |
           sed -e "s/'/'\"'\"'/g" |
-          ./get_commit_pragmas |
+          ${{github.action_path}}/get_commit_pragmas |
           sed -e 's/^/CP_/' >> $GITHUB_ENV
         echo 'Identified pragmas:'
         cat $GITHUB_ENV