Merge pull request #17857 from MinaProtocol/lyh/shallow-init-submodule

nix/pin.sh: init submodule with depth 1

Author: dannywillems

nix/pin.sh

@@ -4,6 +4,6 @@
 # Find the root of the Mina repo
 ROOT=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )"/.. &> /dev/null && pwd )
 # Update the submodules
-pushd "$ROOT" && git submodule sync && git submodule update --init --recursive && popd
+pushd "$ROOT" && git submodule sync && git submodule update --init --recursive --depth 1 && popd
 # Add the flake registry entry
 nix registry add mina "git+file://$ROOT?submodules=1"