Automerge tests in the general registry fail

[devmotion]

I retriggered the PR to the general registry on the master branch, i.e., the updated PR includes also the fix to deps/build.jl. However, the automerge tests still fail due to the following error:

┌ Error: Error building `Libtask`: 
│ fatal: not a git repository (or any of the parent directories): .git
│ ┌ Error: Download failed: curl: (22) The requested URL returned error: 404 Not Found
│ └ @ Base download.jl:43
│ ERROR: LoadError: failed process: Process(`git -C /tmp/jl_NXjesH/packages/Libtask/kykuJ fetch --tags`, ProcessExited(128)) [128]
│ 
│ Stacktrace:
│  [1] pipeline_error at ./process.jl:525 [inlined]
│  [2] run(::Cmd; wait::Bool) at ./process.jl:440
│  [3] run at ./process.jl:438 [inlined]
│  [4] find_prev_tag(::String) at /tmp/jl_NXjesH/packages/Libtask/kykuJ/deps/build.jl:3
│  [5] include_build_script(::SubString{String}, ::Bool) at /tmp/jl_NXjesH/packages/Libtask/kykuJ/deps/build.jl:45
│  [6] top-level scope at /tmp/jl_NXjesH/packages/Libtask/kykuJ/deps/build.jl:65
│  [7] include(::String) at ./client.jl:439
│  [8] top-level scope at none:5
│ in expression starting at /tmp/jl_NXjesH/packages/Libtask/kykuJ/deps/build.jl:65
└ @ Pkg.Operations /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.4/Pkg/src/Operations.jl:892

It seems it's not possible to run

Libtask.jl/deps/build.jl

Line 3 in 4e201c5

run(`git -C $project_root fetch --tags`)

in the registry CI since the project directory is not downloaded as a git repository there.

I guess it would be more appropriate to fix a specific version but that seems impossible in the current setup where the latest version might not exist during testing?

[devmotion]

I just updated the PR with the latest commit on the master branch. As expected, the problem was fixed by #58.