Investigate enabling simd128 feature

[sinui0]

tlsn-js/.cargo/config.toml

Line 4 in 7154fa1

"target-feature=+atomics,+bulk-memory,+mutable-globals",

wasm has a simd128 feature which may provide performance benefits. We should give it a shot and benchmark

[heeckhau]

I tried running the demo with and without +simd128, but I don't see a difference:

	run 0	run 1	run 2
current settings	32	26	26
+simd128	32	26	26

(Using this line in the console log !@# request took 26 seconds)