Bump Swashbuckle.AspNetCore from 6.7.3 to 6.8.0 (#278)

Bumps [Swashbuckle.AspNetCore](https://github.com/domaindrivendev/Swashbuckle.AspNetCore) from 6.7.3 to 6.8.0.
- [Release notes](https://github.com/domaindrivendev/Swashbuckle.AspNetCore/releases)
- [Commits](domaindrivendev/Swashbuckle.AspNetCore@v6.7.3...v6.8.0)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/LoanRepaymentApi/LoanRepaymentApi.csproj

@@ -16,7 +16,7 @@
         <PackageReference Include="Hellang.Middleware.ProblemDetails" Version="6.5.1" />
         <PackageReference Include="NodaTime" Version="3.1.12" />
         <PackageReference Include="Sentry.AspNetCore" Version="4.10.2" />
-        <PackageReference Include="Swashbuckle.AspNetCore" Version="6.7.3" />
+        <PackageReference Include="Swashbuckle.AspNetCore" Version="6.8.0" />
     </ItemGroup>
 
     <ItemGroup>