9.0.0 - Spec 3.2

What's Changed

• Support empty "additionalProperties" by @MortenGregersen in #150
• Updated docs for 3.2 by @MortenGregersen in #151
• Update GitHub Actions to use Node 20 by @MortenGregersen in #152
• Fixes for 3.2 by @MortenGregersen in #153
• Enable manual triggering of spec check by @MortenGregersen in #154
• Update from new spec (3.2) by @MortenGregersen in #155
• Update dependencies by @MortenGregersen in #156

Full Changelog: 8.3.3...9.0.0