Bump Polly to 7.2.3 (#40284)
Bump Polly to 7.2.3 (#40284)

Update the package reference for Polly to its latest release.
aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore