Bump AWSSDK.CloudWatch from 4.0.1.15 to 4.0.2.1

---
updated-dependencies:
- dependency-name: AWSSDK.CloudWatch
  dependency-version: 4.0.2.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

src/Foundatio.AWS/Foundatio.AWS.csproj

@@ -4,7 +4,7 @@
     <PackageTags>$(PackageTags);Amazon;AWS;S3</PackageTags>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="AWSSDK.CloudWatch" Version="4.0.1.15" />
+    <PackageReference Include="AWSSDK.CloudWatch" Version="4.0.2.1" />
     <PackageReference Include="AWSSDK.S3" Version="4.0.6.7" />
     <PackageReference Include="AWSSDK.SQS" Version="4.0.0.21" />