Prioritize mineable material when multiple matches are found to fix problem of wrong dig time computation

[NoClipMonster]

Fix implemented and tested only on 1.21.11. Looks like digTime became right. Please tell me if something wrong with this implementation and i don't see it.

[VasilisDragon]

Built and ran the generator locally against 1.21.11 with this branch — fixes the failure mode I documented in PrismarineJS/minecraft-data#1193 (where extremeheat pointed out the durable fix belongs in the generator, not in patched output).

Whole-file count of incorrect_for_wooden_tool in the regenerated blocks.json drops from 108 to 0. Spot-check across categories:

Block	Before	After
diamond_ore	incorrect_for_wooden_tool	mineable/pickaxe
deepslate_diamond_ore	incorrect_for_wooden_tool	mineable/pickaxe
copper_block	incorrect_for_wooden_tool	mineable/pickaxe
iron_block	incorrect_for_wooden_tool	mineable/pickaxe
obsidian	incorrect_for_wooden_tool	mineable/pickaxe

harvestTools stays populated, so bot.digTime() now routes through the mineable/pickaxe tier table.

The symptom reproduces across 1.20.5 through 1.21.11; this PR only touches mc/1.21.11/. Surrounding code is identical in the other affected versions, so the 5-line patch should port cleanly. Happy to validate or leave as a follow-up.

Will close PrismarineJS/minecraft-data#1193 once this lands.

[NoClipMonster]

Fix implemented on 1.20.5 and higher versions
Waiting for @extremeheat for the review.