v5.0.0-rc.0

Major Changes

• 2b2c154: No longer allow references to non-token leaf nodes. References only work when referencing a Design Token (its value).
  Non-token nodes will also not make it to the output, because they are filtered out during the flattening process to tokenMap and tokenArray.
  Remove allowing references with .value suffix.
• 2b2c154: BREAKING: minimum NodeJS version required is now v22.0.0 (LTS, at time of writing this). This is to support Set.prototype.union which we utilize in our token reference resolution utility, and it's important to use the cheaper built-in versus doing a union manually.

Minor Changes

• 2b2c154: Support passing Token Map structure to getReferences and resolveReferences utils.