feat: add ssh-gen submodule and update install script

scripts/install

@@ -26,7 +26,9 @@ $APT_CMD install -yqq \
     btop \
     stow \
     tmux \
-    dos2unix
+    dos2unix \
+    python3 \
+    python3-yaml
 
 if [ ! -d "$HOME/.oh-my-zsh" ]; then
   echo
@@ -39,11 +41,6 @@ if [ -f "$HOME/.zshrc" ] && [ ! -L "$HOME/.zshrc" ]; then
   rm "$HOME/.zshrc"
 fi
 
-mkdir -p "$HOME/.ssh"
-if ! grep -Fxq "Include ~/.config/ssh/*" "$HOME/.ssh/config" 2>/dev/null; then
-  echo "Include ~/.config/ssh/*" >> "$HOME/.ssh/config"
-fi
-
 if [ -f "./.git/hooks/post-merge" ]; then
   rm "./.git/hooks/post-merge"
 fi