ci: update base os image during update dependencies workflow

[austinvazquez]

Issue #, if available:
Base OS image updates have been manual by maintainers.

Description of changes:
This change adds update base os image to the update dependencies workflow.

Testing done:
Locally tested regex to validate it produced the same result as the last update:

macedonv@localhost:/Volumes/workplace/finch-core$ aws s3 ls s3://*** --recursive | grep -E 'Fedora-Cloud-Base-.*\.aarch64-[0-9]+\.qcow2$$' | tail -n 1 | sort | awk '{print $4}'
Fedora-Cloud-Base-40-1.14.aarch64-20240626221713.qcow2
macedonv@localhost:/Volumes/workplace/finch-core$ 

• I've reviewed the guidance in CONTRIBUTING.md

License Acceptance

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[austinvazquez]

Placing in draft. I need to update the workflow to publish base OS SHASUM to deps.runfinch.com to enable this update automation.

[austinvazquez]

I have updated the runbooks for building the base OS image to upload the shasum to https://deps.runfinch.com along with the image, but also shoutout to @Shubhranshu153 for scripting the image build step!