Update apache/skywalking-eyes digest to 2ca7b4d

Author: oxide-renovate[bot]

.github/workflows/license-check.yml

@@ -12,4 +12,4 @@ jobs:
     steps:
     - uses: actions/checkout@master
     - name: Check License Header
-      uses: apache/skywalking-eyes/header@3ea9df11bb3a5a85665377d1fd10c02edecf2c40
+      uses: apache/skywalking-eyes/header@2ca7b4de66bc42c76dc23a9a63a9899a31434fd1