CI: autoupdate: pass args to pmb correctly (MR 5507)

The --details-to-stdout flag must come before the subcommand.

Signed-off-by: Caleb Connolly <caleb@postmarketos.org>
[ci:skip-build]: already built successfully in CI

.ci/autoupdate.sh

@@ -82,7 +82,7 @@ update_linux_next() {
 	pmbootstrap checksum linux-next
 
 	# Ensure it builds
-	pmbootstrap build --details-to-stdout linux-next
+	pmbootstrap --details-to-stdout build linux-next
 
 	# Commit
 	git add device/testing/linux-next/APKBUILD