Compile latest luajit from git repository

[cyberplant]

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• I have read the contributing guideline and understand that I have made the correct modifications

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Description:

The LuaJIT that is compiled on alpine has some math bugs that have been solved in the git LuaJIT.

These bugs are preventing Luanti to start when using some games that make good use of the JIT component.

For example, trying to start latest game mineclonia with the latest luanti image on ARM fails with this error:

2025-10-28 04:29:29: ACTION[Main]: Server: Shutting down
2025-10-28 04:29:29: ERROR[Main]: ModError: Failed to load and run script from /config/.minetest/games/mineclonia/mods/MAPGEN/mcl_levelgen/init.lua:
2025-10-28 04:29:29: ERROR[Main]: ...est/games/mineclonia/mods/MAPGEN/mcl_levelgen/random.lua:857: assertion failed!
2025-10-28 04:29:29: ERROR[Main]: stack traceback:
2025-10-28 04:29:29: ERROR[Main]:        [C]: in function 'assert'
2025-10-28 04:29:29: ERROR[Main]:        ...est/games/mineclonia/mods/MAPGEN/mcl_levelgen/random.lua:857: in main chunk
2025-10-28 04:29:29: ERROR[Main]:        [C]: in function 'dofile'
2025-10-28 04:29:29: ERROR[Main]:        ...etest/games/mineclonia/mods/MAPGEN/mcl_levelgen/init.lua:168: in main chunk

Benefits of this PR and context:

Using latest LuaJIT from git fixes these bugs.

How Has This Been Tested?

Have built the docker image on my Raspberry Pi 4 and checked that the errors reported before are gone.

Source / References:

• https://codeberg.org/mineclonia/mineclonia/issues/3739

[github-actions]

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[LinuxServer-CI]

I am a bot, here are the test results for this PR:
https://ci-tests.linuxserver.io/lspipepr/luanti/5.14.0-pkg-94f1fa49-dev-440b979eaaf623194924b404adc8611e111bbafe-pr-6/index.html
https://ci-tests.linuxserver.io/lspipepr/luanti/5.14.0-pkg-94f1fa49-dev-440b979eaaf623194924b404adc8611e111bbafe-pr-6/shellcheck-result.xml

Tag	Passed
amd64-5.14.0-pkg-94f1fa49-dev-440b979eaaf623194924b404adc8611e111bbafe-pr-6	✅
arm64v8-5.14.0-pkg-94f1fa49-dev-440b979eaaf623194924b404adc8611e111bbafe-pr-6	✅

[redongh]

confirming what @cyberplant wrote as I am affected in the same way. would be great if this would get reviewed / approved, is there anything that could be done to facilitate this?

[thespad]

@cyberplant sorry this got overlooked. Please add an entry to the changelog in the readme-vars and then I'm happy to merge this.

[cyberplant]

@cyberplant sorry this got overlooked. Please add an entry to the changelog in the readme-vars and then I'm happy to merge this.

Done, does it look good?

[LinuxServer-CI]

I am a bot, here are the test results for this PR:
https://ci-tests.linuxserver.io/lspipepr/luanti/5.14.0-pkg-22fac08d-dev-86492eb8d1565a314a65eb1fe41ac527c15ae8af-pr-6/index.html
https://ci-tests.linuxserver.io/lspipepr/luanti/5.14.0-pkg-22fac08d-dev-86492eb8d1565a314a65eb1fe41ac527c15ae8af-pr-6/shellcheck-result.xml

Tag	Passed
amd64-5.14.0-pkg-22fac08d-dev-86492eb8d1565a314a65eb1fe41ac527c15ae8af-pr-6	✅
arm64v8-5.14.0-pkg-22fac08d-dev-86492eb8d1565a314a65eb1fe41ac527c15ae8af-pr-6	✅