Update link to ninja in INSTALL.md

[bogind]

Updated windows build instructions in INSTALL.md.

Description

Previous link of ninja release was of version 1.7.2, this caused a build error on Windows (raises multiple outputs aren't (yet?) supported by depslog; which according to - Support multiple outputs in gcc depfile should be fixed in ninja version >=1.10.

Changed the link to current latest which is 1.12.1 and added a note.

[DelazJ]

(For most urls there) How about, instead of directly download the binaries, we add links to the page where the download would be done, allowing people to actually see what they are about to download and make their own choice....? And these won't be outdated with new releases...

[agiudiceandrea]

For GitHub, possible alternatives could be URLs like https://github.com/ninja-build/ninja/releases/ or https://github.com/ninja-build/ninja/releases/latest
Anyway, I think we should at least recommend the version that we know will successfully complete the build process.

[bogind]

The latest version (1.12.1) successfully builds.
But I agree that changing both the wording and the links to the releases page and tell them what to download.

[m-kuhn]

I wouldn't mind dropping versions from the install.md and maintain minimum requirements in cmake where it will check all platforms. Unless we have very specific reasons for specific versions for install.md builds.

[github-actions]

🪟 Windows builds

Download Windows builds of this PR for testing.
Debug symbols for this build are available here.
(Built from commit c8953b8)

🪟 Windows Qt6 builds

Download Windows Qt6 builds of this PR for testing.
(Built from commit c8953b8)