[MCPE-168921] Miner pottery shard cannot be obtained by brushing suspicious sand in desert pyramid

Unlike Java Edition, when brushing suspicious sand in desert pyramid, it never drops miner pottery shard, which means that miner pottery shard can only be obtained by creative inventory or command.

The loot table from /data/minecraft/loot_tables/archaeology/desert_pyramid.json in Java Edition:

{
  "type": "minecraft:archaeology",
  "pools": [
    {
      "bonus_rolls": 0.0,
      "entries": [
        {
          "type": "minecraft:item",
          "name": "minecraft:archer_pottery_shard"
        },
        {
          "type": "minecraft:item",
          "name": "minecraft:miner_pottery_shard"
        },
        {
          "type": "minecraft:item",
          "name": "minecraft:prize_pottery_shard"
        },
        {
          "type": "minecraft:item",
          "name": "minecraft:skull_pottery_shard"
        },
        {
          "type": "minecraft:item",
          "name": "minecraft:diamond"
        },
        {
          "type": "minecraft:item",
          "name": "minecraft:tnt"
        },
        {
          "type": "minecraft:item",
          "name": "minecraft:gunpowder"
        },
        {
          "type": "minecraft:item",
          "name": "minecraft:emerald"
        }
      ],
      "rolls": 1.0
    }
  ]
}

The loot table from /behavior_packs/experimental_next_major_update/loot_tables/entities/desert_pyramid_brushable_block.json in Bedrock Edition:

{
  "pools": [
    {
      "rolls": {
        "min": 1,
        "max": 1
      },
      "entries": [
        {
          "type": "item",
          "name": "minecraft:archer_pottery_shard",
          "weight": 1
        },
        {
          "type": "item",
          "name": "minecraft:prize_pottery_shard",
          "weight": 1
        },
        {
          "type": "item",
          "name": "minecraft:skull_pottery_shard",
          "weight": 1
        },
        {
            "type": "item",
            "name": "minecraft:gunpowder",
            "weight": 1
        },
        {
            "type": "item",
            "name": "minecraft:tnt",
            "weight": 1
        },
        {
            "type": "item",
            "name": "minecraft:diamond",
            "weight": 1
        },
        {
            "type": "item",
            "name": "minecraft:emerald",
            "weight": 1
        }
      ]
    }
  ]
}