Bump wasmtime to 6.0.0 (#13429)

* Bump `wasmtime` to 6.0.0

* Disable cranelift egraphs

substrate/client/executor/wasmtime/src/runtime.rs

@@ -298,6 +298,11 @@ fn common_config(semantics: &Semantics) -> std::result::Result<wasmtime::Config,
 	config.cranelift_opt_level(wasmtime::OptLevel::SpeedAndSize);
 	config.cranelift_nan_canonicalization(semantics.canonicalize_nans);
 
+	// Since wasmtime 6.0.0 the default for this is `true`, but that heavily regresses
+	// the contracts pallet's performance, so disable it for now.
+	#[allow(deprecated)]
+	config.cranelift_use_egraphs(false);
+
 	let profiler = match std::env::var_os("WASMTIME_PROFILING_STRATEGY") {
 		Some(os_string) if os_string == "jitdump" => wasmtime::ProfilingStrategy::JitDump,
 		None => wasmtime::ProfilingStrategy::None,
@@ -368,7 +373,7 @@ fn common_config(semantics: &Semantics) -> std::result::Result<wasmtime::Config,
 
 		let mut pooling_config = wasmtime::PoolingAllocationConfig::default();
 		pooling_config
-			.strategy(wasmtime::PoolingAllocationStrategy::ReuseAffinity)
+			.max_unused_warm_slots(4)
 			// Pooling needs a bunch of hard limits to be set; if we go over
 			// any of these then the instantiation will fail.
 			//
@@ -680,10 +685,8 @@ where
 	let mut linker = wasmtime::Linker::new(&engine);
 	crate::imports::prepare_imports::<H>(&mut linker, &module, config.allow_missing_func_imports)?;
 
-	let mut store =
-		crate::instance_wrapper::create_store(module.engine(), config.semantics.max_memory_size);
 	let instance_pre = linker
-		.instantiate_pre(&mut store, &module)
+		.instantiate_pre(&module)
 		.map_err(|e| WasmError::Other(format!("cannot preinstantiate module: {:#}", e)))?;
 
 	Ok(WasmtimeRuntime {