Update freebsd.yml

Author: gkorland

.github/workflows/freebsd.yml

@@ -14,7 +14,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: build
-      uses: vmactions/[email protected].4
+      uses: vmactions/[email protected].6
       with:
         usesh: true
         sync: rsync