fix fish of centos 8

1 job for master in 3 minutes and 21 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
failed #3464
vc
vm

00:03:21

 
Name Stage Failure
failed
vm Test
ok: [localhost]

TASK [init : Docker apt 源] *****************************************************
fatal: [localhost]: FAILED! => {"changed": false, "msg": "apt cache update failed"}

PLAY RECAP *********************************************************************
localhost : ok=50 changed=5 unreachable=0 failed=1 skipped=25 rescued=0 ignored=0

ERROR: Job failed: exit status 1