Refactor older tests to use testify (#33140)

Refactor checks to use assert/require
Use require.Eventually for waiting in elastic and meilisearch tests
Use require to exit early instead of assert

modules/git/repo_language_stats_test.go

@@ -10,20 +10,18 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 )
 
 func TestRepository_GetLanguageStats(t *testing.T) {
 	repoPath := filepath.Join(testReposDir, "language_stats_repo")
 	gitRepo, err := openRepositoryWithDefaultContext(repoPath)
-	if !assert.NoError(t, err) {
-		t.Fatal()
-	}
+	require.NoError(t, err)
+
 	defer gitRepo.Close()
 
 	stats, err := gitRepo.GetLanguageStats("8fee858da5796dfb37704761701bb8e800ad9ef3")
-	if !assert.NoError(t, err) {
-		t.Fatal()
-	}
+	require.NoError(t, err)
 
 	assert.EqualValues(t, map[string]int64{
 		"Python": 134,