pre-patched iso is created with entire ostree history

[Dostoievski Albino Batista]

Brief Description
-----------------
"patch-iso-debian" script create a iso file with the entire ostree repository history causing the size of the iso increase with the amount of commits made to the ostree repository.

Severity
--------
Minor

Steps to Reproduce
------------------
Execute patch-iso-debian script:
patch-iso-debian -i <input filename.iso> -o <output filename.iso> [ -p ] <patch>

Expected Behavior
------------------
ISO is created only with the latest commit.

Actual Behavior
----------------
ISO is created with ostree's entire commit history.

Reproducibility
---------------
100% Reproducible

System Configuration
--------------------
N/A

Branch/Pull Time/Commit
-----------------------
master

Last Pass
---------
N/A

Timestamp/Logs
--------------
# Mount pre-patched ISO and run ostree log starlingx
#instboot-iso-f6bbfcc2/ostree_repo$ ostree log starlingx
commit 0fbfa5080fa8a96405243ec1813bccd0b647cf929ee50658f39b9a148c991f86
ContentChecksum: 65286fafa78775022b5b6fb407672abf265da3839ff42dc2ea5957b6ba945fb8
Date: 2023-12-15 20:07:09 +0000

commit b4400ad4535c8dbeb2e20878f6d9a28358ce3624cf229134c8f44e9185e129c7
ContentChecksum: fb3adba7b56685b89d1d7868e162398b0f1802d76df4221c6ede98c387d2b586
Date: 2023-12-07 18:55:12 +0000

    Commit-id: starlingx-intel-x86-64-20231207185459

Test Activity
-------------
N/A

Workaround
----------
N/A

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/starlingx/root/+/903888

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/root/+/903888
Committed: https://opendev.org/starlingx/root/commit/ca1f22108ef69381ae51d83497abb08043405703
Submitter: "Zuul (22348)"
Branch: master

commit ca1f22108ef69381ae51d83497abb08043405703
Author: Dostoievski Batista <email address hidden>
Date: Mon Dec 18 10:52:19 2023 -0300

    Pull only the latest ostree commit to pre-patched ISO

    This commit change the patch-iso-debian script to pull only the latest
    ostree commit from the repository used to create it. This make the iso
    not increase in size exponentially.

    Test plan:
    PASS: Create ISO using the script.
    PASS: Check if ostree_repo/ contains only the latest commit.
    PASS: Install AIO-SX system.

    Closes-Bug: 2046811

    Change-Id: I96ef803e3b93535cdd2b9e077ab94df98164cdfa
    Signed-off-by: Dostoievski Batista <email address hidden>