Getting a `This package is not registered, skipping` with `Plots`, no new tag

[t-bltg]

See https://github.com/JuliaPlots/Plots.jl/actions/runs/20851361058/job/59918570803#step:3:57 (TagBot 1.24.3).

EDIT: does also seem to occur on TagBot 1.24.2 : https://github.com/JuliaPlots/Plots.jl/actions/runs/20820006818/job/59805635328#step:3:57)