Test tutorials before the release

[svekars]

We need a better way to test tutorials against the RC than we have now. Today we wait until the release to merge the tutorials which is a confusing way of doing it. We should be able to merge and publish to a branch that runs against RCs so that we can preview and make sure the tutorials build correctly before the release.

@b0noI @malfet @atalman

[mthrok]

Also I am curious to learn why all green in #1893 is not enoug? What is causing the disparity?

[thiagocrepaldi]

@svekars This is a great idea. #2541, for instance, is a tutorial that uses APIs only available on RC branches, so we cannot merge the PR before pytorch 2.1 goes out, which is not ideal.

In theory, we will not know how much work we have to do to make the tutorial to work with the new pytorch. That makes the tutorials to always be out of sync during releases