fix: wasmer-runtime deprecation

[baszalmstra]

Fixes #374

[codecov]

Codecov Report

Merging #375 (261ad0f) into main (25156eb) will decrease coverage by 0.00%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main     #375      +/-   ##
==========================================
- Coverage   82.54%   82.54%   -0.01%     
==========================================
  Files         264      264              
  Lines       15247    15248       +1     
==========================================
  Hits        12586    12586              
- Misses       2661     2662       +1     

Impacted Files	Coverage Δ
crates/mun_runtime/benches/util/mod.rs	0.00% <0.00%> (ø)

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