Consume SdkReleaseType in automation script #53779
Description
Similar to how we consumed the api-version in #53156
We need to read in the SdkReleaseType value from the input JSON. If it is beta, we should ensure that the csproj that for the package has the corresponding beta suffix,e.g. 1.0.0-beta.1. Usually this will be what the csproj is set to already. If the value is stable, then we should remove the beta suffix. We don't need to validate the input, it is either beta or stable so we can use an if/else. Updating the changelog is out of scope.