fix: Only use APT in Debian-based images

Hydrunfile

@@ -2,12 +2,12 @@
 
 set -e
 
-# Install native dependencies
-apt update
-apt install -y curl make
-
 # Go
 if [ "$1" = "go" ]; then
+    # Install native dependencies
+    apt update
+    apt install -y curl make
+
     # Install bagop
     curl -L -o /tmp/bagop "https://github.com/pojntfx/bagop/releases/latest/download/bagop.linux-$(uname -m)"
     install /tmp/bagop /usr/local/bin
@@ -25,6 +25,10 @@ fi
 
 # gccgo
 if [ "$1" = "gccgo" ]; then
+    # Install native dependencies
+    apt update
+    apt install -y curl
+
     # Install bagccgop
     curl -L -o /tmp/bagccgop "https://github.com/pojntfx/bagccgop/releases/latest/download/bagccgop.linux-$(uname -m)"
     install /tmp/bagccgop /usr/local/bin
@@ -75,4 +79,4 @@ if [ "$1" = "windows" ]; then
     yes | cp -f ~/.wine/drive_c/users/root/Documents/stfs/out/* out
 
     exit 0
-fi
+fi