v0.25.6

Changelog

• 8900231 chore: fix unit test failures caused by service filters
• e5325ab chore(ci): remove tests for go v1.14
• 8cd5128 chore(ci): bump versions for CI
• 729c7da fix: don't emit openapi files for filtered services
• da01f8b feat: add missing functional options to public Go API (#239)