Update to Wasmtime v42.0.0

[jeffcharles]

• func::post_return became a no-op (deprecate [Typed]Func::post_return[_async] and make them no-ops wasmtime#12498)
• The AlwaysTrapAdapter variant of wasmtime::Trap no longer exists

[saulecabrera]

It seems that clippy is failing.

[saulecabrera]

@jeffcharles It seems that only aarch64-linux-musl gem was published. Same error as last time perhaps?

[jeffcharles]

From https://github.com/bytecodealliance/wasmtime-rb/actions/runs/22410111702/job/64884039695#step:7:43:

total 1554964
-rw-r--r-- 1 runner runner 259547648 Feb 25 18:47 wasmtime-42.0.0-aarch64-linux-musl.gem
-rw-r--r-- 1 runner runner 259661824 Feb 25 18:47 wasmtime-42.0.0-aarch64-linux.gem
-rw-r--r-- 1 runner runner 129411584 Feb 25 18:47 wasmtime-42.0.0-aarch64-mingw-ucrt.gem
-rw-r--r-- 1 runner runner  39734272 Feb 25 18:47 wasmtime-42.0.0-arm64-darwin.gem
-rw-r--r-- 1 runner runner 274048000 Feb 25 18:47 wasmtime-42.0.0-x64-mingw-ucrt.gem
-rw-r--r-- 1 runner runner  42791424 Feb 25 18:47 wasmtime-42.0.0-x86_64-darwin.gem
-rw-r--r-- 1 runner runner 265975808 Feb 25 18:47 wasmtime-42.0.0-x86_64-linux-musl.gem
-rw-r--r-- 1 runner runner 266202624 Feb 25 18:47 wasmtime-42.0.0-x86_64-linux.gem
-rw-r--r-- 1 runner runner  54868992 Feb 25 18:48 wasmtime-42.0.0.gem
Error:  Pushing gem to https://rubygems.org.../
Error:  Successfully registered gem: wasmtime (42.0.0-aarch64-linux-musl)

Looks like a similar but different error 🤔. Investigating...

[jeffcharles]

#571 should fix it.

[jeffcharles]

Looks like the latest run still didn't work. Different error this time. Will continue investigating