Increased max step time for Pipelines builds

[#1]

Hi all - happy to announce that with the completion of our migration to our new V2 runtime we are now able to extend the max execution time for steps in Pipelines.

As of today, we have extended the max execution time to 720 mins (12 hrs). We are able to extend this further if required, but will wait to hear feedback from customers before making additional changes.

Documentation for the max step time has been updated here.

[carlos_ijalba]

Note that in the official documentation, still shows 1x and 2x sizes as having shared CPU, when on the new V2 runtime all CPUs are now dedicated.