sql: fix TestAuthenticationAndHBARules for special_cases data-driven …

…test

informs #131532
informs #131110
informs #130253
informs #127745
Epic: CRDB-41958

`TestAuthenticationAndHBARules` fails for special_cases data driven test. We
suspect it might be due to client for `special_cases` test accessing the test
server from a previous test `secure_non_tls` which sets `accept_sql_without_tls`
to true. This results in the following error `ERROR: pq: SSL is not enabled on
the server` while the client was expecting an SSL connection with the server. We
fix this in the PR.

Release note: None

pkg/sql/pgwire/auth_test.go

@@ -135,6 +135,7 @@ func TestAuthenticationAndHBARules(t *testing.T) {
 	skip.UnderRace(t, "takes >1min under race")
 
 	testutils.RunTrueAndFalse(t, "insecure", func(t *testing.T, insecure bool) {
+		defer leaktest.AfterTest(t)()
 		hbaRunTest(t, insecure)
 	})
 }
@@ -272,6 +273,9 @@ func hbaRunTest(t *testing.T, insecure bool) {
 				case "accept_sql_without_tls":
 					testServer.SetAcceptSQLWithoutTLS(true)
 
+				case "reject_sql_without_tls":
+					testServer.SetAcceptSQLWithoutTLS(false)
+
 				case "set_hba":
 					_, err := conn.ExecContext(context.Background(),
 						`SET CLUSTER SETTING server.host_based_authentication.configuration = $1`, td.Input)

pkg/sql/pgwire/testdata/auth/secure_non_tls

@@ -71,3 +71,7 @@ local     all      all          password
 connect password=abc user=testuser sslmode=disable
 ----
 ERROR: authentication rejected by configuration (SQLSTATE 28000)
+
+# Revert enable non-TLS secure connections.
+reject_sql_without_tls
+----