Julia nightly fails

[claireh93]

Seems to be an issue with Ubuntu 20.04 and loading .so files related to NetCDF:

ERROR: LoadError: InitError: could not load library "/home/runner/.julia/artifacts/a990d3d23ca4ca4c1fcd1e42fc198f1272f7c49b/lib/libnetcdf.so"
libmbedtls.so.13: cannot open shared object file: No such file or directory
Stacktrace:
  [1] dlopen(s::String, flags::UInt32; throw_error::Bool)
    @ Base.Libc.Libdl ./libdl.jl:117
  [2] dlopen(s::String, flags::UInt32)
    @ Base.Libc.Libdl ./libdl.jl:117
  [3] macro expansion
    @ ~/.julia/packages/JLLWrappers/QpMQW/src/products/library_generators.jl:54 [inlined]
  [4] __init__()
    @ NetCDF_jll ~/.julia/packages/NetCDF_jll/2PbeF/src/wrappers/x86_64-linux-gnu.jl:14
  [5] _include_from_serialized(path::String, depmods::Vector{Any})
    @ Base ./loading.jl:812
  [6] _require_search_from_serialized(pkg::Base.PkgId, sourcepath::String, depth::Int64)
    @ Base ./loading.jl:921
  [7] _require_search_from_serialized
    @ ./loading.jl:893 [inlined]
  [8] _require(pkg::Base.PkgId)
    @ Base ./loading.jl:1196
  [9] _require_prelocked(uuidkey::Base.PkgId)
    @ Base ./loading.jl:1089
 [10] macro expansion
    @ ./loading.jl:1069 [inlined]
 [11] macro expansion
    @ ./lock.jl:267 [inlined]
 [12] require(into::Module, mod::Symbol)
    @ Base ./loading.jl:1033
 [13] include
    @ ./Base.jl:427 [inlined]
 [14] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt64}}, source::String)
    @ Base ./loading.jl:1423
 [15] top-level scope
    @ stdin:1
during initialization of module NetCDF_jll
in expression starting at /home/runner/.julia/packages/NetCDF/CS38M/src/NetCDF.jl:1
in expression starting at stdin:1