MM-52532: Fix golangci warnings for public module (#23918)

https://mattermost.atlassian.net/browse/MM-52532

```release-note
NONE
```

server/public/model/compliance.go

@@ -81,8 +81,8 @@ func (c *Compliance) PreSave() {
 }
 
 func (c *Compliance) DeepCopy() *Compliance {
-	copy := *c
-	return &copy
+	cCopy := *c
+	return &cCopy
 }
 
 func (c *Compliance) JobName() string {