Fixes segmentation fault and upgrades the package

Motivation for this change

MongoDB Compass was marked as broken in release 20.03 due to a segmentation fault. Apparently there was an issue with setuid of the chromium executable.

I followed the PKGBUILD from the AUR package of mongodb-compass and changed the build accordingly, while also upgrading the package version.

I use this build successfully as a package override on my 20.03 installation and I thought of contributing my code to the community. I hope this will work with unstable as well.

I haven't updated meta.maintainer because I'm not the original author of this file.

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Determined the impact on package closure size (by running nix path-info -S before and after)
• Ensured that relevant documentation is up to date
• Fits CONTRIBUTING.md.