deps(dotnet): Bump CloudinaryDotNet from 1.28.0 to 1.29.1

---
updated-dependencies:
- dependency-name: CloudinaryDotNet
  dependency-version: 1.29.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -31,7 +31,7 @@
     <!-- HTTP / API -->
     <PackageVersion Include="RestSharp" Version="114.0.0" />
     <!-- Cloud Services -->
-    <PackageVersion Include="CloudinaryDotNet" Version="1.28.0" />
+    <PackageVersion Include="CloudinaryDotNet" Version="1.29.1" />
     <!-- Reactive Extensions -->
     <PackageVersion Include="System.Reactive" Version="6.1.0" />
     <PackageVersion Include="ReactiveUI" Version="22.3.1" />