Bump Polly from 8.6.5 to 8.6.6

---
updated-dependencies:
- dependency-name: Polly
  dependency-version: 8.6.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/AndDoneSecureClientLibrary/AndDoneSecureClientLibrary.csproj

@@ -24,7 +24,7 @@
   <ItemGroup>
     <PackageReference Include="JsonSubTypes" Version="2.0.1" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
-    <PackageReference Include="Polly" Version="8.6.5" />
+    <PackageReference Include="Polly" Version="8.6.6" />
     <PackageReference Include="RestSharp" Version="113.1.0" />
     <PackageReference Include="System.ComponentModel.Annotations" Version="5.0.0" />
   </ItemGroup>