Phase 122: Fix collectable bit in LuaT (WIP) #137

Job	Run time
Code Quality Checks	1m 7s
Build & Test (gcc-13, Release)	45s
Build & Test (clang-15, Release)	29s
Build & Test (gcc-13, Debug)	46s
Build & Test (clang-15, Debug)	32s
Sanitizer Tests (ASAN + UBSAN)	30s
Performance Regression Check	1m 8s
Build Summary	2s
	5m 19s

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