v3.20.6

Changelog

• e247212 chore: bump version to v3.20.6 [skip-release] [skip ci]
• 4042827 feat(core): support Hasura aggregate query syntax
• d6bf713 feat(core): widen aggregate compatibility grammar
• baec01a feat(eval): add dual audience benchmark reports
• 651f65a fix(agent): complete forbidden actions as blocked
• 4369053 fix(agent): teach supported aggregate query forms
• e3dd196 fix(core): tighten aggregate compatibility guards