deps: update to cjs-module-lexer@0.4.3

The CHANGELOG.md includes the listed features which are supported including:

• Support for Babel 7.12 reexports (https://github.com/guybedford/cjs-module-lexer/pull/16)
• Support module.exports = { ...require('x') } reexports (https://github.com/guybedford/cjs-module-lexer/pull/18)
• "if" keyword space parsing in exports matching (https://github.com/guybedford/cjs-module-lexer/pull/17)

These are all extensions to the functionality so this is entirely non-breaking, with associated test coverage in the PRs.

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• documentation is changed or added
• commit message follows commit guidelines