Update tar

[simolus3]

Rolls tar to 1.0.0. The changes in that package mostly consist of adding class modifiers and a few unawaited() markers. TarFormat has been changed to distinguish between fully known formats and combinations the reader is still working out, but those aren't used by pub.

So I think pub shouldn't be affected by those changes, but as usual I've pushed a version of the extract_all_pub_dev.dart script that compares the two versions in my fork on the compare-tars branch.

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[simolus3]

Hm, seems like I need to do a 1.0.1 to support Dart 3.1

[simolus3]

I think it's a bit unfortunate that pub has diverged from the upstream tar package in #3862. I get that it was probably urgent to fix, but it would be nice if I at least get notified when I need to make a fix in tar to support upcoming Dart versions. All tar versions blow 1.0.1 will be broken with the next stable Dart release, and I could have known this months ago...

Either way, the vendored copy is now in sync with the upstream package again and it seems to be working.

[sigurdm]

I get that it was probably urgent to fix, but it would be nice if I at least get notified when I need to make a fix in tar to support upcoming Dart versions.

Sorry - I think this fix was landed without noticing that the library was vendored.

[sigurdm]

Thanks!