fix: make chattr non-fatal in provision script

Some busybox versions (e.g., busybox-static on ARM64 Ubuntu) lack
chattr support. Make the calls non-fatal so provisioning succeeds
regardless of busybox capabilities.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: tomassrnka

packages/orchestrator/internal/template/build/phases/base/provision.sh

@@ -7,7 +7,7 @@ RESULT_PATH="{{ .ResultPath }}"
 echo "Starting provisioning script"
 
 echo "Making configuration immutable"
-$BUSYBOX chattr +i /etc/resolv.conf
+$BUSYBOX chattr +i /etc/resolv.conf 2>/dev/null || true
 
 # Helper function to check if a package is installed
 is_package_installed() {
@@ -95,7 +95,7 @@ echo "Linking systemd to init"
 ln -sf /lib/systemd/systemd /usr/sbin/init
 
 echo "Unlocking immutable configuration"
-$BUSYBOX chattr -i /etc/resolv.conf
+$BUSYBOX chattr -i /etc/resolv.conf 2>/dev/null || true
 
 echo "Finished provisioning script"