Run gopls modernize on codebase (#34751)

Recent modernize fixes:
https://github.com/golang/tools/commits/master/gopls/internal/analysis/modernize

modules/git/tree_test.go

@@ -19,7 +19,7 @@ func TestSubTree_Issue29101(t *testing.T) {
 	assert.NoError(t, err)
 
 	// old code could produce a different error if called multiple times
-	for i := 0; i < 10; i++ {
+	for range 10 {
 		_, err = commit.SubTree("file1.txt")
 		assert.Error(t, err)
 		assert.True(t, IsErrNotExist(err))