Fix ci #1012

Job	Run time
Build jupyterlab (no kernels)	6m 36s
Build example-bash-minimal kernel	3m 55s
Build example-c-minimal kernel	3m 58s
Build example-dotnet-csharp kernel	3m 49s
Build example-dotnet-fsharp kernel	3m 55s
Build example-elm-minimal kernel	4m 17s
Build example-go-minimal kernel	3m 42s
Build example-haskell-minimal kernel	16m 37s
Build example-javascript-minimal kernel	3m 52s
Build example-julia-minimal kernel	11m 18s
Build example-nix-minimal kernel	3m 59s
Build example-ocaml-minimal kernel	8m 43s
Build example-postgres-minimal kernel	4m 48s
Build example-python-minimal kernel	3m 53s
Build example-python-native kernel	3m 43s
Build example-python-science kernel	3m 53s
Build example-python-stable kernel	4m 58s
Build example-r-minimal kernel	3m 56s
Build example-rust-minimal kernel	3m 59s
Build example-scala-minimal kernel	4m 10s
Build example-typescript-minimal kernel	4m 31s
Build example-zsh-minimal kernel	3m 52s
Build devshell	35s
Build all kernels	30m 58s
Build docs	46s
Test a template	46s
	2h 29m 29s

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