ci: Install node in Arch container for checkout

actions/checkout@v4 needs node; the archlinux:base-devel container only
had git installed first, so checkout failed with exit 127 (Actions run
1171). Install git, nodejs-lts-jod, npm, sudo, and jq before checkout.

#1

.gitea/workflows/build.yml

@@ -12,7 +12,7 @@ jobs:
     steps:
       - name: Prepare build user
         run: |
-          pacman -Syu --noconfirm git
+          pacman -Syu --noconfirm git nodejs-lts-jod npm sudo jq
           useradd -m builder
           echo 'builder ALL=(ALL) NOPASSWD: ALL' > /etc/sudoers.d/builder
           chmod 440 /etc/sudoers.d/builder