Limit concurrency of CI workflows

[ch1bo]

We only want to have one job per PR per workflow running at the same time. This will make all other jobs get cancelled (e.g. when restarting jobs after rebasing)

---

• CHANGELOG update not needed
• Documentation update not needed
• Added and/or updated haddocks not needed
• No new TODOs introduced or explained herafter

[github-actions]

Transactions Costs

Sizes and execution budgets for Hydra protocol transactions. Note that unlisted parameters are currently using arbitrary values and results are not fully deterministic and comparable to previous runs.

Metadata
Generated at	2023-03-06 11:33:25.766363141 UTC
Max. memory units	14000000
Max. CPU units	10000000000
Max. tx size (kB)	16384

Script summary

Name	Hash	Size (Bytes)
μHead	N/A	4458
νInitial	9492414f8f96e8483a0b8ee268fc06a954641cb2cbaa9a8b093c2c9b	4621
νCommit	5d3f107aaa56d06188cf231941cf8163e777236a9cfdc48fd4bbfa23	2422
νHead	82f16b51e2d81c6f4d42dd7398b4713a445464902f63dfd86ffe754e	8954

Cost of Init Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	5058	14.37	5.67	0.53
2	5264	15.39	6.01	0.55
3	5462	20.66	8.11	0.62
5	5875	22.91	8.87	0.66
10	6897	36.61	14.10	0.85
36	12236	97.62	37.12	1.74

Cost of Commit Transaction

Currently only one UTxO per commit allowed (this is about to change soon)

UTxO	Tx size	% max Mem	% max CPU	Min fee ₳
1	603	15.83	6.22	0.35

Cost of CollectCom Transaction

Parties	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
1	57	816	24.42	9.92	0.45
2	114	1140	40.84	16.70	0.65
3	171	1463	59.15	24.34	0.87
4	227	1785	80.68	33.34	1.12

Cost of Close Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	672	17.83	7.80	0.38
2	813	18.39	8.07	0.39
3	970	19.78	8.84	0.42
5	1333	23.31	10.85	0.48
10	2192	30.99	15.14	0.61
50	8839	88.66	47.24	1.60

Cost of Contest Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	677	22.21	9.29	0.43
2	833	23.92	10.18	0.45
3	1032	26.21	11.46	0.49
5	1369	29.17	13.04	0.54
10	2219	38.40	17.88	0.69
44	7842	97.61	48.36	1.63

Cost of Abort Transaction

Some variation because of random mixture of still initial and already committed outputs.

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	5170	29.53	12.62	0.71
2	5493	48.00	20.73	0.93
3	5816	70.22	30.52	1.19
4	6283	98.41	43.06	1.53

Cost of FanOut Transaction

Involves spending head output and burning head tokens. Uses ada-only UTxO for better comparability.

Parties	UTxO	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
5	0	0	5074	10.59	4.43	0.49
5	1	57	5115	12.12	5.31	0.51
5	5	285	5259	18.97	9.14	0.60
5	10	569	5432	26.35	13.44	0.70
5	20	1137	5799	41.36	22.15	0.90
5	30	1707	6156	56.37	30.86	1.10
5	40	2280	6519	71.89	39.78	1.30
5	50	2849	6876	87.27	48.65	1.51
5	58	3303	7164	99.39	55.67	1.67

[github-actions]

Test Results

281 tests   - 11   275 ✔️  - 11   18m 7s ⏱️ -36s
  94 suites  -   4       6 💤 ±  0 
    4 files    -   1       0 ❌ ±  0 

Results for commit 78a5ebd. ± Comparison against base commit feaea6a.

This pull request removes 11 tests.

Hydra.TUI.Options ‑ parses --cardano-signing-key option
Hydra.TUI.Options ‑ parses --connect option
Hydra.TUI.Options ‑ parses --network-id option
Hydra.TUI.Options ‑ parses --node-socket option
Hydra.TUI/end-to-end smoke tests ‑ display feedback long enough
Hydra.TUI/end-to-end smoke tests ‑ doesn't allow multiple initializations
Hydra.TUI/end-to-end smoke tests ‑ starts & renders
Hydra.TUI/end-to-end smoke tests ‑ supports the full Head life cycle
Hydra.TUI/end-to-end smoke tests ‑ supports the init & abort Head life cycle
Hydra.TUI/text rendering errors ‑ should show not enough fuel message and suggestion
…