fix(data): add TCGplayer group id for 30th Celebration

[cativo23]

Changes

• data/Mega Evolution/30th Celebration.ts: add thirdParty.tcgplayer: 24722 (and cardmarket: 6601, matching sibling sets).

Details

Every 30th Celebration card returns pricing.tcgplayer: null, although the cards already carry TCGplayer product ids (for example 30th-130 Moltres → 716219). updateTCGPlayerDatas() only fetches prices for sets that have a set-level TCGplayer group id, and this set had none, so even after the next release none of its products would be loaded.

• Group 24722 on tcgcsv is "ME: 30th Celebration", abbreviation 30C, published 2026-09-16, the same release date as the set.
• All 157 card-level product ids in the set belong to that group; product 716219 (Moltres - 130/128) has a market price of $5.71 (Holofoil).
• Cardmarket expansion 6601: card-level ids such as 907738 (Moltres) and 907654 (Pikachu) carry idExpansion: 6601 in Cardmarket's product catalog. It is set-level metadata only; Cardmarket prices already resolve by card-level id.
• Same pattern as the other Mega Evolution sets, e.g. Perfect Order (6443 / 24587).

No other behaviour changes: prices are cached by product id, and the set endpoint omits thirdParty. 30th Classic Collection has the same gap (separate TCGplayer group 24837) and gets its own PR.

[TCGdexBOT]

🃏 0 Cards Changed

No recognized card files were changed in this PR.

[cativo23]

Reopening, this was closed by accident. A PR in my own project mentioned it right after the word "fix", so GitHub closed it when that PR merged.

The diff is unchanged. 30th Celebration still has no set-level TCGplayer group id, so its cards keep returning pricing.tcgplayer: null. #2445 did the same change for 30th Classic Collection and is already merged.