Where to download just the Safari dmg/pkg

The internet traffic between our managed macOS Mojave laptops and the Apple Software Updates website is blocked for security reasons. So I can not use the regular System Preferences – Software Update to update native macOS software.

This is not an issue for me, because every time Apple release a Software Update, I wait a week or so and I visit the following URL https://support.apple.com/downloads and I download the specific package (in .dmg format), I save the .dmg package into a USB Stick and I update the macOS laptops and I am good to go.

Now, the problem is that Apple just released an important security update https://support.apple.com/en-us/HT212808 just for Safari 14.1.2.

My question is since that I believe this time it is just Safari the issue, is Apple going to publish just the Safari .dmg package update on the regular https://support.apple.com/downloads website? If not, how can I download just the Safari 14.1.2 in .dmg/.pkg format so I can install into our macOS Mojave laptops?

Thank you so much in advance for your help.