Update dependency Polly to 8.6.4 (#75)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

src/Soenneker.Git.LibGit2Sharp.csproj

@@ -43,7 +43,7 @@
 
     <ItemGroup>
         <PackageReference Include="LibGit2Sharp" Version="0.31.0" />
-        <PackageReference Include="Polly" Version="8.6.3" />
+        <PackageReference Include="Polly" Version="8.6.4" />
         <PackageReference Include="Soenneker.Extensions.Configuration" Version="3.0.722" />
         <PackageReference Include="Soenneker.Utils.Directory" Version="3.0.728" />
         <PackageReference Include="Soenneker.Utils.Process" Version="3.0.1342" />