Simplify random.Int64 usage with generics

utils/random/number.go

@@ -3,9 +3,11 @@ package random
 import (
 	"crypto/rand"
 	"math/big"
+
+	"golang.org/x/exp/constraints"
 )
 
-func Int64(max int64) int64 {
-	rnd, _ := rand.Int(rand.Reader, big.NewInt(max))
+func Int64[T constraints.Integer](max T) int64 {
+	rnd, _ := rand.Int(rand.Reader, big.NewInt(int64(max)))
 	return rnd.Int64()
 }