build(deps): bump @swc/core-darwin-x64 from 1.15.18 to 1.15.21 in the production-dependencies group across 1 directory

[dependabot]

Bumps the production-dependencies group with 1 update in the / directory: @swc/core-darwin-x64.

Updates @swc/core-darwin-x64 from 1.15.18 to 1.15.21

Changelog

Sourced from @​swc/core-darwin-x64's changelog.

[1.15.21] - 2026-03-22

Bug Fixes

• (cli) Honor externalHelpers=false in rust binary (#11693) (1be052e)

• (cli) Skip mkdir when --out-file targets the current directory (#11720) (f3f4e51)

• (es/decorators) Resolve 2022-03 issues #9565/#9078/#9079 and add regressions (#11698) (a025d2b)

• (es/fixer) Wrap new opt chain (#11618) (fdcd184)

• (es/flow) Normalize module await bindings for Hermes parity (#11703) (73d8761)

• (es/minifier) Fix compatibility for Wasm plugin (swc_ast_unknown) (#11641) (abd0e45)

• (es/module) Preserve explicit index.js import path when baseUrl is set (#11597) (830dbeb)

• (es/module) Avoid rewriting unknown relative extensions (#11713) (ed09218)

• (es/regexp) Implement transform-named-capturing-groups-regex (#11642) (f62bfa9)

• (es/types) Add new options types (#11683) (62eeee1)

• (malloc) Fallback to system allocator on linux gnu s390x/powerpc (#11606) (e103fac)

• Update lz4_flex to resolve RUSTSEC-2026-0041 (#11701) (7528507)

Documentation

• (agents) Improve guidance (#11626) (1cdfec9)

• (agents) Add AGENTS two-pass rules for es crates (#11634) (12af4a1)

... (truncated)

Commits

• a06c4b9 chore: Publish 1.15.21 with swc_core v59.0.1
• d220ed3 chore: Update changelog
• eb169d5 chore: Publish 1.15.21-nightly-20260322.3 with swc_core v59.0.1
• 024bf92 chore: Update changelog
• 4c378f7 chore: Publish 1.15.21-nightly-20260322.2 with swc_core v59.0.1
• 09c4be0 ci: install zig for core ppc64le/s390x nightly cross builds (#11725)
• c36686b chore: Update changelog
• 1cdd010 chore: Publish 1.15.21-nightly-20260322.1 with swc_core v59.0.1
• 18de8de chore: Publish crates with swc_core v59.0.1
• e29d58c test: move TS decorator fixtures out of proposal crate (#11723)
• Additional commits viewable in compare view