Publishing to symbol-feeds

[epananth]

• This issue is blocking
• This issue is causing unreasonable pain

Publishing to symbols-feeds is really slow. So we discontinued publishing to symbol-feeds. Except for stable builds and the stable packages from those builds.( We still publish to darc-pub-sym)

Note : we cannot publish stable builds to storage cos their paths will get overwritten.

Fix to try :

1. By making symbol packages always have non-stable version numbers, but his has to be investigated . (does it matter if they differ in version number from the non-symbol package?) etc.

cc: @mmitche

[epananth]

After discussion with @mmitche

Publishing to Azdo feed is slow ( especially cos symbol packages are big). One of the improvements is to remove publishing for symbols from Azdo feed.

Note: Nuget feed still publishes to non stable versions.

We still publish to Nuget feed cos :

1. We post-build sign in .Net 6, so symbols get altered and have to be re indexed
2. In some scenarios in .Net 5 like reindexing and upping the expiration dates.

[missymessa]

This issue is pretty old. If it continues to be an issue, we can reopen/recreate.