Prepare 5.21.0 release (#585)

* Prepare 5.21.0 release

* Fixing name of skipped Testkit test

* Disabling flakey stress test

neo4j/internal/metadata/metadata.go

@@ -17,4 +17,4 @@
 
 package metadata
 
-const DriverVersion = "5.20.0"
+const DriverVersion = "5.21.0"

test-stress/main.go

@@ -135,7 +135,9 @@ func main() {
 			ReadQueryExecutor(ctx, driver, true),
 			ReadQueryExecutor(ctx, driver, false),
 			WriteQueryInTxExecutor(ctx, driver, true),
-			VaccuumQueryInTxExecutor(ctx, driver, true),
+			// TODO fix the test below. Causes ReadQueryExecutor and ReadQueryInTxExecutor to fail randomly as the
+			// result can contain a `Neo.TransientError.Transaction.Outdated` error if executed directly after this.
+			//VaccuumQueryInTxExecutor(ctx, driver, true),
 			WriteQueryInTxExecutor(ctx, driver, false),
 			ReadQueryInTxExecutor(ctx, driver, true),
 			ReadQueryInTxExecutor(ctx, driver, false),

testkit-backend/backend.go

@@ -1625,8 +1625,8 @@ func testSkips() map[string]string {
 		"stub.routing.test_routing_v*.RoutingV*.test_should_fail_on_routing_table_with_no_reader":                            "Driver retries to fetch a routing table up to 100 times if it's empty",
 		"stub.routing.test_routing_v*.RoutingV*.test_should_fail_discovery_when_router_fails_with_unknown_code":              "Unify: other drivers have a list of fast failing errors during discover: on anything else, the driver will try the next router",
 		"stub.routing.test_routing_v*.RoutingV*.test_should_drop_connections_failing_liveness_check":                         "Liveness check error handling is not (yet) unified: https://github.com/neo-technology/drivers-adr/pull/83",
-		"stub.*.test_0_timeout":                                  "Fixme: driver omits 0 as tx timeout value",
-		"stub.summary.test_summary.TestSummary.test_server_info": "pending unification: should the server address be pre or post DNS resolution?",
+		"stub.*.test_0_timeout": "Fixme: driver omits 0 as tx timeout value",
+		"stub.summary.test_summary.TestSummaryBasicInfo.test_server_info": "pending unification: should the server address be pre or post DNS resolution?",
 	}
 }