build(deps): bump Swashbuckle.AspNetCore in /responders/src/API

Bumps [Swashbuckle.AspNetCore](https://github.com/domaindrivendev/Swashbuckle.AspNetCore) from 6.6.2 to 6.8.1.
- [Release notes](https://github.com/domaindrivendev/Swashbuckle.AspNetCore/releases)
- [Commits](domaindrivendev/Swashbuckle.AspNetCore@v6.6.2...v6.8.1)

---
updated-dependencies:
- dependency-name: Swashbuckle.AspNetCore
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

responders/src/API/EMBC.Responders.API/EMBC.Responders.API.csproj

@@ -22,7 +22,7 @@
 
     <ItemGroup>
         <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="8.0.7" />
-        <PackageReference Include="Swashbuckle.AspNetCore" Version="6.6.2" />
+        <PackageReference Include="Swashbuckle.AspNetCore" Version="6.8.1" />
     </ItemGroup>
 
     <ItemGroup>