Pass `--debuginfo` to `wasm-opt` when using `--no-strip`

[applejag]

When firefly-cli calls wasm-opt the debug symbols will always be trimmed.

Right now to get debug symbols I have to run firefly-cli with both --no-opt and --no-strip, but it would be useful to still see the optimized code with debug symbols.

Related code:

firefly-cli/src/wasm.rs

Lines 79 to 99 in 6bfc4b0

	let output = Command::new("wasm-opt")
	.args([
	"-Oz",
	"--disable-exception-handling",
	"--disable-gc",
	"--disable-typed-function-references",
	"--enable-bulk-memory",
	"--enable-extended-const",
	"--enable-memory64",
	"--enable-multivalue",
	"--enable-mutable-globals",
	"--enable-nontrapping-float-to-int",
	"--enable-reference-types",
	"--enable-relaxed-simd",
	"--enable-sign-ext",
	"--enable-simd",
	"--enable-tail-call",
	"-o",
	bin_path,
	bin_path,
	])

When running wasm-opt manually with --debuginfo then the resulting WASM file correctly contains all debug symbols.