Add retry for cockroachdb init to avoid a concurrency issue in CockroachDB, specifically a TransactionRetryError.

tests/init/init.go

@@ -169,7 +169,10 @@ func initPostgresDB(dbType string, connectionString string) error {
 	for _, schemaName := range schemaNames {
 		fmt.Println("\nInitializing", schemaName, "schema...")
 
-		err = execFile(db, fmt.Sprintf("./testdata/init/%s/%s.sql", dbType, schemaName))
+		// retry add due to a concurrency issue in CockroachDB, specifically a TransactionRetryError
+		err = retry(3, func() error {
+			return execFile(db, fmt.Sprintf("./testdata/init/%s/%s.sql", dbType, schemaName))
+		})
 		if err != nil {
 			return fmt.Errorf("failed to execute sql file: %w", err)
 		}
@@ -183,6 +186,23 @@ func initPostgresDB(dbType string, connectionString string) error {
 	return nil
 }
 
+func retry(count int, f func() error) error {
+
+	for i := 0; i < count; i++ {
+		err := f()
+
+		if err == nil {
+			break
+		}
+
+		if i == count-1 {
+			return err
+		}
+	}
+
+	return nil
+}
+
 func execFile(db *sql.DB, sqlFilePath string) error {
 	testSampleSql, err := os.ReadFile(sqlFilePath) // #nosec G304
 	if err != nil {