luajit2: update to 2026-07-31 and refresh RISC-V 64 patch - #30282

Checking PR #30282: luajit2: update to 2026-07-31 and refresh RISC-V 64 patch (Makefile Audit)

Commit 6778485 - luajit2: update to 2026-07-31:

✅ Makefile does not assign per-package variables at the top level
✅ Makefile contains valid assignment operators and no spaces after ':='
✅ No feed package forces its own inclusion into buildbot default images via DEFAULT+BUILDBOT
✅ Makefile does not reuse PKG_NAME in call, define, or eval lines
✅ File additions contain clean UNIX (LF) line termination
✅ All modified files contain a trailing newline

Package Release Audit:

✅ Package lang/lua/luajit2 version updated to '2.1.$(subst -,.,2026-07-31)' and PKG_RELEASE correctly reset to 1