1.9.1

Various fixes & improvements

• Fix FastAPI issues (#1532) ( #1514) (#1532) by @antonpirker
• Add deprecation warning for 3.4, 3.5 (#1541) by @sl0thentr0py
• Fast tests (#1504) by @antonpirker
• Replace Travis CI badge with GitHub Actions badge (#1538) by @153957
• chore(deps): update urllib3 minimum version with environment markers (#1312) by @miketheman
• Update Flask and Quart integrations (#1520) by @pgjones
• chore: Remove ancient examples from tracing prototype (#1528) by @sl0thentr0py
• fix(django): Send correct "url" transaction source if Django resolver fails to resolve (#1525) by @sl0thentr0py