🤖 [backports-release-1.10] Bump the Pkg stdlib from 61257864f to a3621e978

[DilumAluthgeBot]

Stdlib: Pkg
URL: https://github.com/JuliaLang/Pkg.jl.git
Stdlib branch: release-1.10
Julia branch: backports-release-1.10
Old commit: 61257864f
New commit: a3621e978
Julia version: 1.10.0-beta2
Pkg version: 1.10.0
Bump invoked by: @IanButterworth
Powered by: BumpStdlibs.jl

Diff: JuliaLang/Pkg.jl@6125786...a3621e9

$ git log --oneline 61257864f..a3621e978
a3621e978 Merge pull request #3604 from JuliaLang/backports-release-1.10
8d5c1de13 status: expand 2 symbol upgrade note to highlight *may* be upgradable (#3576)
8998ec77d precompile: show ext parent in output report (#3603)
71a77cb18 Test suite: activate a temp project if we need to install HistoricalStdlibVersions during the test suite (#3602)
8e7245d79 Fix lacking `subdir` information when altering packages (#3597)