🤖 [backports-release-1.10] Bump the Pkg stdlib from 9cb6d35f8 to 45521a6e8

[DilumAluthgeBot]

Stdlib: Pkg
URL: https://github.com/JuliaLang/Pkg.jl.git
Stdlib branch: release-1.10
Julia branch: backports-release-1.10
Old commit: 9cb6d35f8
New commit: 45521a6e8
Julia version: 1.10.4
Pkg version: 1.10.0(Does not match)
Bump invoked by: @IanButterworth
Powered by: BumpStdlibs.jl

Diff: JuliaLang/Pkg.jl@9cb6d35...45521a6

$ git log --oneline 9cb6d35f8..45521a6e8
45521a6e8 backport extension dependency modeling from Base 1.11 to Pkg 1.10 (#3986)
1810b1123 don't swallow internal errors (#3987)