Bump StackExchange.Redis from 2.6.122 to 2.7.4

Bumps [StackExchange.Redis](https://github.com/StackExchange/StackExchange.Redis) from 2.6.122 to 2.7.4.
- [Release notes](https://github.com/StackExchange/StackExchange.Redis/releases)
- [Changelog](https://github.com/StackExchange/StackExchange.Redis/blob/main/docs/ReleaseNotes.md)
- [Commits](StackExchange/StackExchange.Redis@2.6.122...2.7.4)

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

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

PRTG Redis Sensor.csproj

@@ -17,7 +17,7 @@
  <PackageReference Include="CommandLineParser" Version="2.9.1" />
  <PackageReference Include="Microsoft.Extensions.Caching.StackExchangeRedis" Version="7.0.13" />
  <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
- <PackageReference Include="StackExchange.Redis" Version="2.6.122" />
+ <PackageReference Include="StackExchange.Redis" Version="2.7.4" />
  </ItemGroup>
 
 </Project>