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] <[email protected]>

src/RedisRateLimiting/RedisRateLimiting.csproj

@@ -27,7 +27,7 @@
 
 	<ItemGroup>
 		<PackageReference Include="System.Threading.RateLimiting" Version="7.0.1" />
-		<PackageReference Include="StackExchange.Redis" Version="2.6.122" />
+		<PackageReference Include="StackExchange.Redis" Version="2.7.4" />
 	</ItemGroup>
 
 </Project>