refactor: update SSH configurations and add new key for Menno's 2025 setup

bin/actions/secrets.sh

@@ -82,6 +82,9 @@ encrypt_folder() {
         printfe "%s\n" "cyan" "Encrypting $file..."
         gpg --quiet --batch --yes --symmetric --cipher-algo AES256 --armor --passphrase="$password" --output "$file.gpg" "$file"
 
+        printfe "%s\n" "cyan" "Staging $file for commit..."
+        git add -f "$file.gpg"
+
         # Update checksum file
         echo $current_checksum > "$checksum_file"
     done