fix linux install: arch linux install yay in root user

.chezmoiscripts/run_onchange_before_linux-install-packages.sh.tmpl

@@ -160,8 +160,18 @@ if ! is_installed "yay"; then
 fi
 {{ else -}}
 if ! command -v yay &> /dev/null; then
+    if [ "$EUID" -ne 0 ]; then
+      mkdir -p /tmp/yay-build
+      useradd -m -G wheel builder && passwd -d builder
+      chown -R builder:builder /tmp/yay-build
+      echo 'builder ALL=(ALL) NOPASSWD: ALL' >> /etc/sudoers
+      su - builder -c "git clone https://aur.archlinux.org/yay-bin.git /tmp/yay-build/yay"
+      su - builder -c "cd /tmp/yay-build/yay && makepkg -si --noconfirm"
+      rm -rf /tmp/yay-build
+    else
       git clone https://aur.archlinux.org/yay-bin.git && cd yay-bin && makepkg -si
     fi
+fi
 {{ end -}}
 
 to_install_aur=()