[6.0] Use docker images without fixed version suffix

[carlossanlop]

From this comment #81391 (comment) seems that we need to stop using the images with the specific hash+date in their name.

I made sure to match the strings we use in main for libraries, coreclr and source-build.

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Issue Details

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From this comment #81391 (comment) seems that we need to stop using the images with the specific hash+date in their name.

I made sure to match the strings we use in main for libraries, coreclr and source-build.

Author:	carlossanlop
Assignees:	carlossanlop
Labels:	area-Infrastructure
Milestone:	-

[hoyosjs]

Other than that, LGTM as long as tests pass

[carlossanlop]

Good news: the unauthorized exception issues in arm and arm64 linux are gone

[carlossanlop]

The UserSecrets and IsolatedStorage issues are gone. There was one image that will need to get updated to a newer OS because it was using 16.04 so the failure did not go away. I'll submit a separate PR for that.

The other failure is a network issue stating the connection was reset by the peer. Only affected one test, and I haven't seen it affecting other tests (yet), so there's no issue for it.