[3.15] community/pdns: upgrade to 4.5.3

Improvements

• 2136: improve some log messages pull request 11002

Bug Fixes

• lmdb, check if the lookup name is part of the zone (Kees Monshouwer) pull request 11158
• pdnsutil edit-zone: fix n and e behaviour on increase-serial prompt pull request 11146
• improve tcp exception handling (Kees Monshouwer) pull request 11123
• lmdb: fix records removal in deleteDomain() (Kees Monshouwer) pull request 11123
• 2136: apply new TTL to whole RRset, not only to the added record pull request 11002