fix(defaults): fix yamllint violation [skip ci]

myii · myii · commit 90093e2592a0 · 2020-12-14T09:45:08.000Z
```console
./redis/defaults.yaml
  76:1      error    too many blank lines (1 &gt; 0)  (empty-lines)
```
diff --git a/redis/defaults.yaml b/redis/defaults.yaml
@@ -73,4 +73,3 @@ redis:
     until: true
     interval: 60
     splay: 10
-
