ClimaUtilities and ClimaTimesteppers downstream tests are failing

[Sbozzolo]

ClimaUtilities:

Aqua tests (additional): Test Failed at /home/runner/.julia/packages/Aqua/bBjXC/src/stale_deps.jl:31
  Expression: isempty(stale_deps)
   Evaluated: isempty(Base.PkgId[Base.PkgId(Base.UUID("d414da3d-4745-48bb-8d80-42e94e092884"), "ClimaCore")])

ClimaTimesteppers:

ERROR: LoadError: ArgumentError: Package SafeTestsets not found in current path.
- Run `import Pkg; Pkg.add("SafeTestsets")` to install the SafeTestsets package.
Stacktrace:
 [1] macro expansion
   @ ./loading.jl:1835 [inlined]
 [2] macro expansion
   @ ./lock.jl:267 [inlined]
 [3] __require(into::Module, mod::Symbol)
   @ Base ./loading.jl:1816
 [4] #invoke_in_world#3
   @ ./essentials.jl:926 [inlined]
 [5] invoke_in_world
   @ ./essentials.jl:923 [inlined]
 [6] require(into::Module, mod::Symbol)
   @ Base ./loading.jl:1809
in expression starting at /home/runner/work/ClimaCore.jl/ClimaCore.jl/ClimaTimesteppers.jl/test/runtests.jl:1