style: format code with gofmt and gofumpt (#145)

Format code with gofmt and gofumpt

This commit fixes the style issues introduced in 3d4bb9f according to the output
from Go fmt and Gofumpt.

Details: https://app.deepsource.com/gh/jaswdr/faker/transform/fe2672b4-8ead-4c5b-a3b7-7ba9cd3b2f31/

Co-authored-by: deepsource-autofix[bot] <62050782+deepsource-autofix[bot]@users.noreply.github.com>

uuid.go

@@ -15,7 +15,7 @@ type UUID struct {
 func (UUID) V4() (uuid string) {
 	var uiq [16]byte
 	io.ReadFull(rand.Reader, uiq[:])
-	uiq[6] = (uiq[6] & 0x0f) | 0x40           // Version 4
-	uiq[8] = (uiq[8] & 0x3f) | 0x80           // Variant RFC4122
+	uiq[6] = (uiq[6] & 0x0f) | 0x40 // Version 4
+	uiq[8] = (uiq[8] & 0x3f) | 0x80 // Variant RFC4122
 	return fmt.Sprintf("%x-%x-%x-%x-%x", uiq[0:4], uiq[4:6], uiq[6:8], uiq[8:10], uiq[10:])
-}
+}