Update swc_core to 50.0.0

[CPunisher]

I also improve the compatibility according to https://swc.rs/docs/plugin/ecmascript/compatibility

[dai-shi]

@vhfmag Would you like to review this?

[vhfmag]

LGTM!

[dai-shi]

Thanks. Would anyone else like to review?

[Copilot]

Pull request overview

This PR updates swc_core from version 32.0.0 to 50.0.0 and adapts the codebase to maintain compatibility with the new API changes according to SWC's plugin compatibility guidelines.

Key changes:

• Updated swc_core to version 50.0.0 and testing library to 19.0.0
• Adapted string handling APIs to use to_string_lossy() and handle Option<&str> returns from as_str()
• Added forward compatibility patterns with #[cfg(swc_ast_unknown)] for unknown AST node variants
• Configured rustflags for wasm32 targets to enable the swc_ast_unknown cfg flag

Reviewed changes

Copilot reviewed 7 out of 8 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
Cargo.toml	Updated swc_core to 50.0.0 and testing to 19.0.0 as workspace dependencies
.cargo/config.toml	Added rustflags configuration to enable swc_ast_unknown cfg for wasm32 targets
crates/react_refresh/Cargo.toml	Converted testing dependency to use workspace version and added lint configuration for unexpected_cfgs
crates/react_refresh/src/lib.rs	Adapted to new string APIs (to_string_lossy, as_str returning Option), added cfg-guarded catch-all patterns
crates/debug_label/Cargo.toml	Converted testing dependency to use workspace version
crates/debug_label/src/lib.rs	Updated Str value assignment to use .into() for type conversion
crates/common/src/atom_import_map.rs	Updated namespace import handling to use to_atom_lossy().into_owned()
Cargo.lock	Updated all transitive dependencies to match the new swc_core and testing versions

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[dai-shi]

Let's see if @Thisen responds in a couple of days. Otherwise, I'll ask @vhfmag something.

[dai-shi]

@Thisen Thanks. Could you make a release? I made a slight change in CD, which hasn't tested, and this will be the first time.

[dai-shi]

@vhfmag Could you open a new PR for the release? I think all you need is to update the version numbers. (and I will then merge and tag.)