Specify that the shared locks in pg_dump are actually ACCESS SHARE

When Who What
2022-07-01 04:44:44 John Naylor (john.naylor) Closed in commitfest 2022-07 with status: Committed
2022-07-01 04:44:32 John Naylor (john.naylor) Added john.naylor as committer
2022-04-25 11:12:26 shuli yan (xmasteryanshuli) Added xmasteryanshuli as reviewer
2022-03-30 22:19:00 Nathan Bossart (bossartn) Added bossartn as reviewer
2022-03-30 22:18:58 Nathan Bossart (bossartn) New status: Ready for Committer
2022-03-30 04:06:27 Justin Pryzby (justinpryzby) Changed authors to Florin Irion (irionr)
2022-03-22 08:30:35 Florin Irion (irionr) Attached mail thread d0f30cc2-3c76-1d43-f291-7c4b2872d653@gmail.com
2022-03-22 08:30:35 Florin Irion (irionr) Created patch record