Bump AWSSDK.CloudFormation from 3.7.302.19 to 3.7.302.21

Bumps [AWSSDK.CloudFormation](https://github.com/aws/aws-sdk-net) from 3.7.302.19 to 3.7.302.21.
- [Changelog](https://github.com/aws/aws-sdk-net/blob/main/SDK.CHANGELOG.MD)
- [Commits](https://github.com/aws/aws-sdk-net/commits)

---
updated-dependencies:
- dependency-name: AWSSDK.CloudFormation
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/discovery/aws/Akka.Discovery.AwsApi.Integration.Tests/Akka.Discovery.AwsApi.Integration.Tests.csproj

@@ -9,7 +9,7 @@
         <PackageReference Include="Akka.Cluster" Version="$(AkkaVersion)" />
         <PackageReference Include="Akka.TestKit" Version="$(AkkaVersion)" />
         <PackageReference Include="Akka.TestKit.Xunit2" Version="$(AkkaVersion)" />
-        <PackageReference Include="AWSSDK.CloudFormation" Version="3.7.302.19" />
+        <PackageReference Include="AWSSDK.CloudFormation" Version="3.7.302.21" />
         <PackageReference Include="AWSSDK.S3" Version="3.7.305.9" />
         <PackageReference Include="Docker.DotNet" Version="3.125.15" />
         <PackageReference Include="FluentAssertions" Version="$(FluentAssertionVersion)" />