README: upgrade flake example

tested with https://github.com/Mic92/dotfiles/runs/1491667409?check_suite_focus=true
This commit is contained in:
Jörg Thalheim 2020-12-03 10:36:09 +01:00
parent ef4324316b
commit fa64b9ec04
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@ -55,7 +55,7 @@ jobs:
with:
# Nix Flakes doesn't work on shallow clones
fetch-depth: 0
- uses: cachix/install-nix-action@v11
- uses: cachix/install-nix-action@v12
with:
install_url: https://github.com/numtide/nix-flakes-installer/releases/download/nix-3.0pre20200820_4d77513/install
extra_nix_config: |