Use anchor's BpfLoaderUpgradeable when available

[archseer]

coral-xyz/anchor#1480

chainlink-solana/gauntlet/packages/gauntlet-solana-contracts/src/commands/abstract/upgrade.ts

Lines 16 to 49 in 281a05e

	export const makeRawUpgradeTransaction = async (
	signer: PublicKey,
	contractId: CONTRACT_LIST,
	bufferAccount: string,
	) => {
	const contract = getContract(contractId, '')
	const programId = new PublicKey(contract.programId)
	const [programDataKey, _nonce] = await PublicKey.findProgramAddress(
	[programId.toBuffer()],
	UPGRADEABLE_BPF_LOADER_PROGRAM_ID,
	)
	const buffer = new PublicKey(bufferAccount)
	const data = encodeInstruction({ Upgrade: {} })
	const keys: AccountMeta[] = [
	{ pubkey: programDataKey, isSigner: false, isWritable: true },
	{ pubkey: programId, isSigner: false, isWritable: true },
	{ pubkey: buffer, isSigner: false, isWritable: true },
	{ pubkey: signer, isSigner: false, isWritable: true },
	{ pubkey: SYSVAR_RENT_PUBKEY, isSigner: false, isWritable: false },
	{ pubkey: SYSVAR_CLOCK_PUBKEY, isSigner: false, isWritable: false },
	{ pubkey: signer, isSigner: true, isWritable: false },
	]
	const rawTx: TransactionInstruction = {
	data,
	keys,
	programId: UPGRADEABLE_BPF_LOADER_PROGRAM_ID,
	}
	return [rawTx]
	}

can be simplified away by https://github.com/project-serum/anchor/pull/1480/files#diff-cdc243d74ffea2ca7a80b1e930b6f013f58c0c95c96d0d513c31e4425fa807f7R269-R294