Update version to 8.0.0

[habbes]

Updates version to 8.0.0 (official release). Also moves public API to shipped.

[ElizabethOkerio]

I think we need to get rid of this. Or this is ok? We should only have .net 8.0 as the dependencies.
Remove from here:
https://github.com/OData/odata.net/blob/dev-8.x/src/Microsoft.OData.Core/Build.NuGet/Microsoft.OData.Core.Release.nuspec#L23

[gathogojr]

What are the next steps after merging this pull request to dev-8.x? Will we continue to do 8.x releases from that branch and 7.x releases from the main branch?

[gathogojr]

For the empty */PublicAPI/net48/PublicAPI.Shipped.txt files, I think you should have deleted them altogether after deleting the equivalent */PublicAPI/net48/PublicAPI.Unshipped.txt files

[gathogojr]

Maybe double-check that src/Microsoft.OData.Core/Build.NuGet/Microsoft.OData.Core.Nightly.Release.nuspec and src/Microsoft.OData.Core/Build.NuGet/Microsoft.OData.Core.Nightly.Release.nuspec are updated with all referenced dependencies...

[habbes]

For the empty */PublicAPI/net48/PublicAPI.Shipped.txt files, I think you should have deleted them altogether after deleting the equivalent */PublicAPI/net48/PublicAPI.Unshipped.txt files

I deleted them already. Not sure why they're showing up in the diff as "empty". Maybe it's because the files were already empty. But I deleted the actual folders.

[gathogojr]

For the empty */PublicAPI/net48/PublicAPI.Shipped.txt files, I think you should have deleted them altogether after deleting the equivalent */PublicAPI/net48/PublicAPI.Unshipped.txt files

I deleted them already. Not sure why they're showing up in the diff as "empty". Maybe it's because the files were already empty. But I deleted the actual folders.

Okay. Maybe just check to ensure that the logic that generates them isn't causing them to be regenerated as empty files

[habbes]

For the empty */PublicAPI/net48/PublicAPI.Shipped.txt files, I think you should have deleted them altogether after deleting the equivalent */PublicAPI/net48/PublicAPI.Unshipped.txt files

I deleted them already. Not sure why they're showing up in the diff as "empty". Maybe it's because the files were already empty. But I deleted the actual folders.

Okay. Maybe just check to ensure that the logic that generates them isn't causing them to be regenerated as empty files

Since it's no longer a target framework, they don't get regenerated. Those were leftover files from before we removed .net48 as a target.

[habbes]

What are the next steps after merging this pull request to dev-8.x? Will we continue to do 8.x releases from that branch and 7.x releases from the main branch?

We'll create a new branch for 7.x from and make main point to what is now dev-8.x

[habbes]

I think we need to get rid of this. Or this is ok? We should only have .net 8.0 as the dependencies. Remove from here: https://github.com/OData/odata.net/blob/dev-8.x/src/Microsoft.OData.Core/Build.NuGet/Microsoft.OData.Core.Release.nuspec#L23

I've removed the nestandard 2.0 references and moved the dependencies it had to the first <dependencies> block