Bump Polly from 7.2.2 to 7.2.3 (#1708)

Bumps [Polly](https://github.com/App-vNext/Polly) from 7.2.2 to 7.2.3.
- [Release notes](https://github.com/App-vNext/Polly/releases)
- [Changelog](https://github.com/App-vNext/Polly/blob/master/CHANGELOG.md)
- [Commits](https://github.com/App-vNext/Polly/commits)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

test/RestSharp.IntegrationTests/RestSharp.IntegrationTests.csproj

@@ -14,7 +14,7 @@
     <ItemGroup>
         <PackageReference Include="HttpTracer" Version="2.1.1" />
         <PackageReference Include="Microsoft.AspNetCore.TestHost" Version="6.0.1" />
-        <PackageReference Include="Polly" Version="7.2.2" />
+        <PackageReference Include="Polly" Version="7.2.3" />
         <PackageReference Include="Xunit.Extensions.Logging" Version="1.1.0" />
     </ItemGroup>
     <ItemGroup>