Bump the runtime 21.08 and new Irrlicht (irrlichtmt)

[farribeiro]

Rework of #33

Bump the runtime to 21.08 and new irrlicht (irrlichtmt) in the minetest module and now need patch to missing anothers not related files

[flathubbot]

Started test build 68464

[flathubbot]

Build 68464 failed

[farribeiro]

none of the new irrlicht(Mt) works with version 5.4.1 and -- yes -- works with master (5.5.0-dev)

[farribeiro]

Btw... This PR is ready to new releases(5.5.0 or later) just change irrlichtmt, luajit, minetest, minetest_game current archives and sha256 checksum in the day of release

[flathubbot]

Started test build 69389

[flathubbot]

Build 69389 failed

[flathubbot]

Started test build 70064

[flathubbot]

Build 70064 failed

[flathubbot]

Started test build 70076

[farribeiro]

I like to put x-checker-data, but not all projects/branches have github api output

The yaml code to minetest maybe this

        x-checker-data:
          type: "json"
          url: "https://api.github.com/repos/minetest/minetest/releases/latest"
          version-query: ".tag_name"
          url-query: ".assets[] | select(.name== $version + \".tar.gz\") | .browser_download_url"

Thinking how put this code on yaml file

[flathubbot]

Build 70076 failed

[flathubbot]

Started test build 76450

[flathubbot]

Build 76450 successful
To test this build, install it from the testing repository:

flatpak install --user https://dl.flathub.org/build-repo/74323/net.minetest.Minetest.flatpakref

[flathubbot]

Started test build 76464

[flathubbot]

Build 76464 successful
To test this build, install it from the testing repository:

flatpak install --user https://dl.flathub.org/build-repo/74337/net.minetest.Minetest.flatpakref

[farribeiro]

@Calinou can you review the PR ?

[Calinou]

Tested locally, it works. Thanks!