style: format code with Go fmt and Gofumpt

This commit fixes the style issues introduced in 589bf5f according to the output
from Go fmt and Gofumpt.

Details: https://github.com/gogs/gogs/pull/8105

internal/database/release.go

@@ -22,7 +22,7 @@ type Release struct {
 	RepoID           int64
 	Repo             *Repository `gorm:"-" json:"-"`
 	PublisherID      int64
-	Publisher        *User   `gorm:"-" json:"-"`
+	Publisher        *User `gorm:"-" json:"-"`
 	TagName          string
 	LowerTagName     string
 	Target           string