YETUS-1143. github action should use ghcr.io image (#11)

diff --git a/action.yml b/action.yml
index 9c6662d..78bfe68 100644
--- a/action.yml
+++ b/action.yml
@@ -72,7 +72,7 @@
 
 runs:
   using: 'docker'
-  image: docker://apache/yetus:main
+  image: docker://ghcr.io/apache/yetus:main
   args:
     - test-patch
     - --basedir=${{ inputs.basedir }}