Use non-stable release by default

This only matters for the examples-orms CI. During CockroachDB CI, a
path to the binary under test is passed as an env var and that is used.

Author: rafiss

testing/main_test.go

@@ -53,11 +53,11 @@ func newServer(t *testing.T, auth authMode) testserver.TestServer {
 	var err error
 	switch auth {
 	case authClientCert:
-		ts, err = testserver.NewTestServer(testserver.SecureOpt())
+		ts, err = testserver.NewTestServer(testserver.SecureOpt(), testserver.NonStableDbOpt())
 	case authPassword:
-		ts, err = testserver.NewTestServer(testserver.SecureOpt(), testserver.RootPasswordOpt("hunter2"))
+		ts, err = testserver.NewTestServer(testserver.SecureOpt(), testserver.RootPasswordOpt("hunter2"), testserver.NonStableDbOpt())
 	case authInsecure:
-		ts, err = testserver.NewTestServer()
+		ts, err = testserver.NewTestServer(testserver.NonStableDbOpt())
 	default:
 		err = fmt.Errorf("unknown authMode %d", auth)
 	}