Refactor random functions

utils/number/number.go

@@ -1,18 +1,11 @@
 package number
 
 import (
-	"crypto/rand"
-	"math/big"
 	"strconv"
 
 	"golang.org/x/exp/constraints"
 )
 
-func RandomInt64(max int64) int64 {
-	rnd, _ := rand.Int(rand.Reader, big.NewInt(max))
-	return rnd.Int64()
-}
-
 func ParseInt[T constraints.Integer](s string) T {
 	r, _ := strconv.ParseInt(s, 10, 64)
 	return T(r)

utils/number/number_test.go

@@ -4,6 +4,7 @@ import (
 	"testing"
 
 	"github.com/navidrome/navidrome/utils/number"
+	"github.com/navidrome/navidrome/utils/random"
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
 )
@@ -17,7 +18,7 @@ var _ = Describe("number package", func() {
 	Describe("RandomInt64", func() {
 		It("should return a random int64", func() {
 			for i := 0; i < 10000; i++ {
-				Expect(number.RandomInt64(100)).To(BeNumerically("<", 100))
+				Expect(random.Int64(100)).To(BeNumerically("<", 100))
 			}
 		})
 	})