Missing release notes for `v8.4.0` of `Microsoft.Extensions.Configuration.AzureAppConfiguration`

[julealgon]

Published nuget:

• https://www.nuget.org/packages/Microsoft.Extensions.Configuration.AzureAppConfiguration/8.4.0

Current release notes still lists 8.3.0 as latest:

• https://github.com/Azure/AppConfiguration/blob/main/releaseNotes/MicrosoftExtensionsConfigurationAzureAppConfiguration.md

Last time this happened there was an open PR for it. I checked and didn't see one either.

[jimmyca15]

The PR is here: #1098

Apologies, due to a few comments the PR got delayed a bit. It is approved now so should go in within ~1 day.

[zhiyuanliang-ms]

Hey, @julealgon Release note now is ready.