Drastically increase allowed test times for potato CI

The context timeouts for tests are designed to give a better error
message when something hangs rather than the test just timing out.
Unfortunately, the potato CI frequently has some test or another
randomly take a long time. While the increased times are somewhat less
than optimal on a real computer, hopefully this will solve the
flickering CI.

pgproto3/trace_test.go

@@ -15,7 +15,7 @@ import (
 func TestTrace(t *testing.T) {
 	t.Parallel()
 
-	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	ctx, cancel := context.WithTimeout(context.Background(), 120*time.Second)
 	defer cancel()
 
 	conn, err := pgconn.Connect(ctx, os.Getenv("PGX_TEST_DATABASE"))