Replace deprecated `math/rand` functions (#30733)v1.23.0-dev

Suggested by logs in #30729

- Remove `math/rand.Seed`
`rand.Seed is deprecated: As of Go 1.20 there is no reason to call Seed
with a random value.`
- Replace `math/rand.Read`
`rand.Read is deprecated: For almost all use cases, [crypto/rand.Read]
is more appropriate.`
- Replace `math/rand` with `math/rand/v2`, which is available since Go
1.22

2 files changed, 4 insertions, 4 deletions

diff --git a/tests/integration/benchmarks_test.go b/tests/integration/benchmarks_test.go
index 7a882fe836..62da761d2d 100644
--- a/tests/integration/benchmarks_test.go
+++ b/tests/integration/benchmarks_test.go
@@ -4,7 +4,7 @@
 package integration
 
 import (
-	"math/rand"
+	"math/rand/v2"
 	"net/http"
 	"net/url"
 	"testing"
@@ -18,7 +18,7 @@ import (
 func StringWithCharset(length int, charset string) string {
 	b := make([]byte, length)
 	for i := range b {
-		b[i] = charset[rand.Intn(len(charset))]
+		b[i] = charset[rand.IntN(len(charset))]
 	}
 	return string(b)
 }
@@ -37,7 +37,7 @@ func BenchmarkRepoBranchCommit(b *testing.B) {
 				b.ResetTimer()
 				b.Run("CreateBranch", func(b *testing.B) {
 					b.StopTimer()
-					branchName := StringWithCharset(5+rand.Intn(10), "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789")
+					branchName := StringWithCharset(5+rand.IntN(10), "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789")
 					b.StartTimer()
 					for i := 0; i < b.N; i++ {
 						b.Run("new_"+branchName, func(b *testing.B) {
diff --git a/tests/integration/git_test.go b/tests/integration/git_test.go
index 818e1fa653..74c511fd7e 100644
--- a/tests/integration/git_test.go
+++ b/tests/integration/git_test.go
@@ -5,9 +5,9 @@ package integration
 
 import (
 	"bytes"
+	"crypto/rand"
 	"encoding/hex"
 	"fmt"
-	"math/rand"
 	"net/http"
 	"net/url"
 	"os"