Mark fluidState redirect as optional for old Lithium/VMP versions

Author: embeddedt

common/src/main/java/org/embeddedt/modernfix/common/mixin/perf/reduce_blockstate_cache_rebuilds/BlockStateBaseMixin.java

@@ -70,7 +70,7 @@ private BlockBehaviour.BlockStateBase.Cache dynamicCacheGen(BlockBehaviour.Block
             opcode = Opcodes.GETFIELD,
             target = "Lnet/minecraft/world/level/block/state/BlockBehaviour$BlockStateBase;fluidState:Lnet/minecraft/world/level/material/FluidState;",
             ordinal = 0
-    ))
+    ), require = 0)
     private FluidState genCacheBeforeGettingFluid(BlockBehaviour.BlockStateBase base) {
         generateCache(base);
         return this.fluidState;