ci: Flaky tests are slowing down the process of merging

It's time to name them and shame them, as the work of the maintainer, or release captain is suffering from having to restart test runs over and over again:

| Test Name | Runs | Failures | Flakyness | | |
|:------------------------------------------------:|:----:|:--------:|:---------:|---|--:|
| test_onchain_their_unilateral_out[True] | 143 | 57 | 28.50% | | |
| test_wss_proxy | 164 | 47 | 22.27% | | |
| test_rbf_reconnect_tx_construct | 25 | 6 | 19.35% | | |
| test_penalty_htlc_tx_timeout[True] | 120 | 25 | 17.24% | | |
| test_penalty_htlc_tx_fulfill[True] | 123 | 25 | 16.89% | | |
| test_penalty_outhtlc[True] | 141 | 25 | 15.06% | | |
| test_penalty_rbf_normal[True] | 142 | 25 | 14.97% | | |
| test_penalty_inhtlc[True] | 147 | 25 | 14.53% | | |
| test_onchain_middleman_their_unilateral_in[True] | 150 | 25 | 14.29% | | |
| test_onchain_timeout[True] | 150 | 25 | 14.29% | | |
| test_onchain_middleman_simple[True] | 152 | 25 | 14.12% | | |
| test_anchorspend_using_to_remote[True] | 142 | 22 | 13.41% | | |

If your test is listed here, please go and stabilize it, the maintainers will be thankful. If not we might have to disable the tests temporarily until they are more stable.