Update to ungoogled-chromium 127.0.6533.72-1

[teeminus]

Builds and runs fine:

Noteable changes:

• README.md
  • Added update procedure for new dependencies
• build.py
  • Fixed logic bug I introduced when switching to the clone script. Previously, we pruned the source folder after extracting the downloads. This can make the extraction of downloads fail if the source file is already/still present as clone script and tarball extraction populated the source folder at different steps in the build chain. Therefore I updated the program flow to first prepare the source folder by either using the clone script or extracting the chromium tarball. Then the source folder is pruned and then the windows specific downloads are extracted.
  • Bump of rust toolchain
  • The rust compiliation now requires the bindgen (.exe) binary which I did not find as binary download. Luckily, they ship a build script to compile the binary from source on the build machine
• downloads.ini
  • Added DirectX-Headers
  • Added windows-rs rust crate
• patches/series / ungoogled-chromium/windows/windows-disable-nodebug_assertion.patch
  • Patch became obsolete
• patches/ungoogled-chromium/windows/windows-fix-building-with-rust.patch
  • I had to patch two GN files to update the location of two required rust libs that are pruned and have to be downloaded manually now
  • I also had to patch the build script for the bindgen.exe binary to work with our toolchain