chore(deps): bump wasmtime

[hanabi1224]

This PR upgrades wasmtime to v43 since MSRV requirement has been satisified by #2265

Tipset validation benchmark result:

master:
     Running benches/tipset-validation.rs (target/release/deps/tipset_validation-4fd72144423dc9a0)
Gnuplot not found, using plotters backend
Benchmarking tipset_validation/calibnet@3408952: Warming up for 3.0000 s
Warning: Unable to complete 100 samples in 5.0s. You may wish to increase target time to 49.6s, or reduce sample count to 10.
tipset_validation/calibnet@3408952
                        time:   [177.21 ms 179.84 ms 182.12 ms]
Found 10 outliers among 100 measurements (10.00%)
  5 (5.00%) low severe
  5 (5.00%) low mild
Benchmarking tipset_validation/mainnet@5709604: Warming up for 3.0000 s
Warning: Unable to complete 100 samples in 5.0s. You may wish to increase target time to 706.9s, or reduce sample count to 10.
tipset_validation/mainnet@5709604
                        time:   [784.90 ms 801.04 ms 817.74 ms]
Found 1 outliers among 100 measurements (1.00%)
  1 (1.00%) high mild
  
PR:
     Running benches/tipset-validation.rs (target/release/deps/tipset_validation-c0097f4e99d91623)
Benchmarking tipset_validation/calibnet@3408952: Warming up for 3.0000 s
Warning: Unable to complete 100 samples in 5.0s. You may wish to increase target time to 315.0s, or reduce sample count to 10.
tipset_validation/calibnet@3408952
                        time:   [180.49 ms 182.81 ms 184.82 ms]
Found 11 outliers among 100 measurements (11.00%)
  6 (6.00%) low severe
  4 (4.00%) low mild
  1 (1.00%) high mild
Benchmarking tipset_validation/mainnet@5709604: Warming up for 3.0000 s
Warning: Unable to complete 100 samples in 5.0s. You may wish to increase target time to 703.3s, or reduce sample count to 10.
tipset_validation/mainnet@5709604
                        time:   [801.28 ms 820.48 ms 840.24 ms]

[codecov-commenter]

Codecov Report

❌ Patch coverage is 77.77778% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 77.01%. Comparing base (a29674a) to head (9f2380b).
⚠️ Report is 21 commits behind head on master.

Files with missing lines	Patch %	Lines
fvm/src/syscalls/error.rs	33.33%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2268      +/-   ##
==========================================
- Coverage   77.02%   77.01%   -0.01%     
==========================================
  Files         143      143              
  Lines       14187    14187              
==========================================
- Hits        10927    10926       -1     
- Misses       3260     3261       +1     

Files with missing lines	Coverage Δ
fvm/src/engine/mod.rs	81.92% <100.00%> (ø)
fvm/src/machine/limiter.rs	100.00% <ø> (ø)
fvm/src/syscalls/error.rs	48.48% <33.33%> (-3.04%)	⬇️

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[rvagg]

I need a bit of time to walk through this one, I want to do a per-version check since 36 to double check

[rvagg]

I believe I heard that we were going to hold off on this until after the next schedule network upgrade so it's not super urgent, but we should get to it asap after that.