feat: add git to dev image

Is required for symfony recipes

Author: Scarbous

php/frankenphp.Dockerfile

@@ -151,7 +151,7 @@ RUN <<EOF
     set -e
     apt-get update
     apt-get upgrade -y
-    install-php-extensions xdebug
+    install-php-extensions xdebug git
     rm -rf /var/cache/apt/archives /var/lib/apt/lists/*
 EOF