Swift OpenAPI Generator 0.3.4

What's Changed

SemVer Patch

• Fix inline response headers by @czechboy0 in #355
• Bump OpenAPIKit to 3.0.0-rc.3 and recognize more base64/binary encoding locations by @czechboy0 in #357
• Use granular RetroactiveAttribute feature guard by @rnro in #359
• Bump to OpenAPIKit 3.0.0 by @czechboy0 in #362
• Fix spelling of retroactive guard by @rnro in #363
• Bump OpenAPIKit to 3.0.1 by @czechboy0 in #365

Other Changes

• Add some new swift-format 5.9 rules by @czechboy0 in #356

Full Changelog: 0.3.3...0.3.4