Update action.yml

Author: coderlzw-cn

.github/workflows/action.yml

@@ -14,4 +14,4 @@ jobs:
         subject: Github Actions job result
         to: ${{secrets.MAIL_TOUSERNAME}}
         from: ${{secrets.MAIL_USERNAME}}
-        body: ${{github.repository}} push log : ${{steps.git_log.outputs.log}}
+        body: ${{github.repository}} push log