[jamescrosswell]

dotnet/android#13380 moved the AssemblyStore reader from .github/skills/read-assembly-store/src/AssemblyStore to tests/Utilities/AssemblyStore. The old path will never get another commit, so watch-upstream.sh finds its latest commit already tracked and skips every run.

This points the watcher at the new location. The old comment recording the previous move was stale, so it's gone.

The upstream commit also removed LZ4 decoding from upstream's reader. We keep it, because apps built with .NET 9 and .NET 10 still ship LZ4-compressed assemblies, so this adds a one-line comment to ArchiveUtils.cs saying so.

The duplicate check includes the path, so the first run after merge opens one more alert for 3c492f0. That one can be closed without review.

Closes #5898

#skip-changelog

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 76.87%. Comparing base (2b68abe) to head (d0c52dd).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5900      +/-   ##
==========================================
+ Coverage   76.77%   76.87%   +0.10%     
==========================================
  Files         532      533       +1     
  Lines       19826    19847      +21     
  Branches     3909     3920      +11     
==========================================
+ Hits        15222    15258      +36     
+ Misses       3718     3709       -9     
+ Partials      886      880       -6     

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[ric-oliv]

3c492f0 isn't only a move. AssemblyCompression.cs drops LZ4 decoding and now throws NotSupportedException for XALZ payloads. K4os.Compression.LZ4 is also gone from the repo. There's nothing to port for us, since net9 and net10 apps still ship LZ4.
Could we leave the usual "reviewed, nothing to port" note on #5898 before this PR closes it?

It might be worth a line on #5346 too. The triage there says LZ4 can't be dropped, and upstream has now dropped it from its reader.