DLPX-86405 deferred upgrade via scripts fails

[prakashsurya]

Problem

When we run a deferred upgrade via the scripts, we're currently running execute with incorrect parameters.

Solution

Fix the parameters passed in to execute.

Related Work

This regression was introduced by:

• https://github.com/delphix/appliance-build/pull/725

Testing

• Before:

  $ sudo /var/dlpx-update/latest/upgrade deferred
  execute: too many arguments specified
  Usage: execute [-f] [-p <platform>]
  upgrade: '/var/dlpx-update/12.0.0.0-snapshot.20230606130957767+jenkins-ops-appliance-build-develop-post-push-323/execute' failed in running appliance.

• After

  $ sudo /var/dlpx-update/latest/upgrade deferred
  Installing for i386-pc platform.
  Installation finished. No error reported.
  Sourcing file `/etc/default/grub'
  Sourcing file `/etc/default/grub.d/init-select.cfg'
  Sourcing file `/etc/default/grub.d/kdump-tools.cfg'
  Sourcing file `/etc/default/grub.d/override.cfg'
  Generating grub configuration file ...
  Found linux image: /boot/vmlinuz-5.4.0-1103-dx2023060600-6dbd3ba07-aws
  Found initrd image: /boot/initrd.img-5.4.0-1103-dx2023060600-6dbd3ba07-aws
  done