perf: Upgrade hugr to v0.18.6, tket to v0.15.8, qis-compiler to v0.4.3

[maximilianruesch]

Upgrades the toolchain across the board for some performance improvements.

[github-actions]

Bencher Report

Project	guppylang
Branch	mr/perf/upgrade-toolchain
Testbed	Linux

Click to view all benchmark results

Benchmark	hugr_bytes	Benchmark Result bytes x 1e3 (Result Δ%)	Upper Boundary bytes x 1e3 (Limit %)	hugr_nodes	Benchmark Result nodes (Result Δ%)	Upper Boundary nodes (Limit %)
tests/benchmarks/test_big_array.py::test_big_array_compile	📈 view plot 🚷 view threshold	62.10 x 1e3 (0.00%) Baseline: 62.10 x 1e3	62.72 x 1e3 (99.01%)	📈 view plot 🚷 view threshold	4,585.00 (0.00%) Baseline: 4,585.00	4,630.85 (99.01%)
tests/benchmarks/test_ctrl_flow.py::test_many_ctrl_flow_compile	📈 view plot 🚷 view threshold	27.80 x 1e3 (0.00%) Baseline: 27.80 x 1e3	28.08 x 1e3 (99.01%)	📈 view plot 🚷 view threshold	1,301.00 (0.00%) Baseline: 1,301.00	1,314.01 (99.01%)
tests/benchmarks/test_queue_push_pop.py::test_queue_push_benchmark_compile	📈 view plot 🚷 view threshold	7.24 x 1e3 (0.00%) Baseline: 7.24 x 1e3	7.32 x 1e3 (99.01%)	📈 view plot 🚷 view threshold	310.00 (0.00%) Baseline: 310.00	313.10 (99.01%)
tests/benchmarks/test_queue_push_pop.py::test_queue_push_pop_benchmark_compile	📈 view plot 🚷 view threshold	9.86 x 1e3 (0.00%) Baseline: 9.86 x 1e3	9.96 x 1e3 (99.01%)	📈 view plot 🚷 view threshold	411.00 (0.00%) Baseline: 411.00	415.11 (99.01%)

🐰 View full continuous benchmarking report in Bencher

[maximilianruesch]

This still needs Quantinuum/selene#213 to run, which we also need to upgrade

[codspeed-hq]

Merging this PR will improve performance by 40.4%

⚠️ Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.

Open the report in CodSpeed to investigate

⚡ 2 improved benchmarks
✅ 9 untouched benchmarks

Performance Changes

	Benchmark	BASE	HEAD	Efficiency
⚡	test_queue_push_pop_benchmark	4.4 s	3.1 s	+40.97%
⚡	test_queue_push_benchmark	3.4 s	2.4 s	+39.82%

Tip

Curious why performance improved? Comment @codspeedbot explain why performance improved on this PR, or directly use the CodSpeed MCP with your agent.

---

_{Comparing mr/perf/upgrade-toolchain (a46555e) with main (3560b6e)}

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.23%. Comparing base (3560b6e) to head (a46555e).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2284   +/-   ##
=======================================
  Coverage   93.23%   93.23%           
=======================================
  Files         162      162           
  Lines       15824    15824           
=======================================
  Hits        14754    14754           
  Misses       1070     1070           

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.