Fix utility script bugs

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

lib/scripts/remove-host.sh

@@ -13,7 +13,7 @@ HOST="$1"
 
 AGE_KEY=$(nix shell nixpkgs#ssh-to-age --command bash -c "cat './hosts/${HOST}/secrets/ssh_host_ed25519_key.pub' | ssh-to-age")
 
-for SOPS_FILE in $(find . -type f -name "sops.yaml"); do
+find . -type f -name "sops.yaml" | while IFS= read -r SOPS_FILE; do
   sed -i "/    - &${HOST} ${AGE_KEY}/d" "${SOPS_FILE}"
   sed -i "/        - \*${HOST}/d" "${SOPS_FILE}"
 done