CI: add miri check

[Robbepop]

Due to use of unsafe Rust it is useful to have miri testing for the wasmi workspace.
Unfortunately this does not (yet) test the extensive Wasm spec test suite but runs only the library unit tests of the entire workspace.
We might be required to either refactor how the Wasm spec test suite works or add some execution unit tests.

[paritytech-cicd-pr]

BENCHMARKS

	NATIVE			WASMTIME
BENCHMARK	MASTER	PR	DIFF	MASTER	PR	DIFF	WASMTIME OVERHEAD
execute/ bare_call_0	1.27ms	1.27ms	⚪ 0.01%	1.06ms	1.06ms	🟢 0.06%	🟢 -16%
execute/ bare_call_0/typed	698.49µs	698.46µs	⚪ -0.01%	524.98µs	518.80µs	🟢 -1.18%	🟢 -26%
execute/ bare_call_1	1.46ms	1.39ms	🟢 -4.85%	1.31ms	1.31ms	⚪ -0.02%	🟢 -6%
execute/ bare_call_16	3.02ms	2.95ms	🟢 -2.25%	4.99ms	4.98ms	⚪ -0.12%	🟡 69%
execute/ bare_call_16/typed	1.32ms	1.32ms	⚪ -0.39%	2.34ms	2.32ms	⚪ -0.76%	🟡 76%
execute/ bare_call_1/typed	727.74µs	729.41µs	⚪ 0.29%	673.32µs	673.67µs	⚪ 0.04%	🟢 -8%
execute/ bare_call_4	1.83ms	1.74ms	🟢 -4.77%	2.07ms	2.06ms	⚪ -0.24%	🟢 19%
execute/ bare_call_4/typed	888.26µs	892.48µs	⚪ 0.47%	966.03µs	964.09µs	⚪ -0.12%	🟢 8%
execute/ count_until	935.00µs	918.23µs	🟢 -1.82%	2.38ms	2.38ms	⚪ -0.05%	🔴 159%
execute/ factorial_iterative	395.56ns	396.66ns	⚪ 0.25%	988.73ns	989.18ns	⚪ 0.03%	🔴 149%
execute/ factorial_recursive	804.17ns	782.22ns	⚪ -1.72%	1.64µs	1.59µs	🟢 -3.16%	🔴 104%
execute/ fib_iterative	1.86ms	1.86ms	⚪ 0.05%	5.11ms	5.11ms	⚪ 0.02%	🔴 174%
execute/ fib_recursive	7.27ms	7.26ms	⚪ -0.25%	14.20ms	14.19ms	⚪ -0.15%	🟡 95%
execute/ global_bump	1.34ms	1.33ms	⚪ -0.30%	3.66ms	3.65ms	⚪ -0.13%	🔴 174%
execute/ host_calls	31.82µs	32.37µs	⚪ 1.05%	49.35µs	44.72µs	🟢 -9.52%	🟢 38%
execute/ memory_fill	1.70ms	1.70ms	⚪ 0.03%	4.33ms	4.33ms	⚪ 0.05%	🔴 155%
execute/ memory_sum	1.65ms	1.59ms	⚪ -2.05%	4.36ms	4.36ms	⚪ 0.04%	🔴 175%
execute/ memory_vec_add	3.17ms	3.16ms	⚪ -0.52%	8.93ms	8.96ms	⚪ 0.32%	🔴 183%
execute/ recursive_is_even	1.35ms	1.36ms	⚪ 0.64%	2.57ms	2.57ms	⚪ 0.08%	🟡 89%
execute/ recursive_ok	183.89µs	182.95µs	⚪ -0.57%	353.82µs	353.27µs	⚪ -0.20%	🟡 93%
execute/ recursive_scan	220.62µs	218.73µs	⚪ -1.05%	459.75µs	459.28µs	⚪ -0.11%	🔴 110%
execute/ recursive_trap	18.22µs	17.21µs	🟢 -5.63%	35.75µs	35.52µs	⚪ -0.54%	🔴 106%
execute/ regex_redux	703.30µs	700.90µs	⚪ -0.40%	1.59ms	1.60ms	⚪ 0.42%	🔴 128%
execute/ rev_complement	626.35µs	620.45µs	⚪ -0.99%	1.56ms	1.56ms	⚪ 0.02%	🔴 151%
execute/ tiny_keccak	496.59µs	486.31µs	🟢 -1.64%	1.43ms	1.42ms	⚪ -0.19%	🔴 192%
execute/ trunc_f2i	1.02ms	1.02ms	⚪ -0.10%	2.72ms	2.72ms	⚪ -0.03%	🔴 167%
instantiate/ wasm_kernel	67.34µs	66.55µs	⚪ -1.02%	126.89µs	94.09µs	🟢 -25.71%	🟢 41%
translate/ wasm_kernel	4.82ms	4.83ms	⚪ 0.15%	9.57ms	10.36ms	🔴 8.41%	🔴 115%

Link to pipeline

[codecov-commenter]

Codecov Report

Merging #523 (139814f) into master (b11271f) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #523   +/-   ##
=======================================
  Coverage   79.38%   79.38%           
=======================================
  Files          74       74           
  Lines        6278     6278           
=======================================
  Hits         4984     4984           
  Misses       1294     1294           

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