Fix utility script bugs

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

lib/scripts/update-keys.sh

@@ -11,11 +11,13 @@ fi
 
 export SOPS_AGE_KEY_FILE="$1"
 
-for SOPS_FILE in $(find . -type f -name 'sops.yaml'); do
+find . -type f -name 'sops.yaml' | while IFS= read -r SOPS_FILE; do
   dir=$(dirname "${SOPS_FILE}")
   echo "${dir}"
-  find "${dir}" -maxdepth 1 -type f -regextype posix-extended -regex '.+\.(yaml|yml|json|env|ini|bin)' | while read -r file; do
-    echo "${file}"
-    nix shell nixpkgs#sops --command sops --config "${SOPS_FILE}" updatekeys "${file}" -y
-  done
+  find "${dir}" -maxdepth 1 -type f -regextype posix-extended \
+    -regex '.+\.(yaml|yml|json|env|ini|bin)' \
+    ! -name 'sops.yaml' | while IFS= read -r file; do
+      echo "${file}"
+      nix shell nixpkgs#sops --command sops --config "${SOPS_FILE}" updatekeys "${file}" -y
+    done
 done