snaky_hash v2.0.2 released

[Peter Boling]

## [2.0.2] - 2025-05-21 ([tag][2.0.2t])
- COVERAGE: 100.00% -- 119/119 lines in 7 files
- BRANCH COVERAGE: 100.00% -- 35/35 branches in 7 files
- 100.00% documented
### Added
- Gem is signed by 20-year cert (@pboling)
  - Expires 2045-04-29
- Gemspec metadata updates (@pboling)
- Documentation updates (@pboling)
- CI covering all code, and all key versions of runtime dependencies (@pboling)
- Including Hashie v0, v1, v2, v3, v4, v5, and HEAD
- [gh2](https://github.com/oauth-xx/snaky_hash/pull/2) - Serializer option (@pboling)
- [gh3](https://github.com/oauth-xx/snaky_hash/pull/3) - Serializer Extensions (@pboling)
- Documentation site at [snaky-hash.galtzo.com](https://snaky-hash.galtzo.com) (@pboling)
- 100% documented! (@pboling)