Bump Cronos from 0.7.1 to 0.8.0 in /src

Bumps [Cronos](https://github.com/HangfireIO/Cronos) from 0.7.1 to 0.8.0.
- [Release notes](https://github.com/HangfireIO/Cronos/releases)
- [Commits](HangfireIO/Cronos@v0.7.1...v0.8.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

src/Miha.Discord/Miha.Discord.csproj

@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Cronos" Version="0.7.1" />
+    <PackageReference Include="Cronos" Version="0.8.0" />
     <PackageReference Include="Discord.Addons.Hosting" Version="5.2.0" />
     <PackageReference Include="Discord.Net" Version="3.13.0" />
     <PackageReference Include="Humanizer" Version="2.14.1" />