feat(sync): remove SNAPSHOT_TOO_OLD (72000) (#508)

See: postgres/postgres@f691f5b

BREAKING CHANGE: This removes an enum constant, and could possibly break code that uses it.

Author: github-actions[bot]

src/PostgresError.ts

@@ -455,8 +455,6 @@ export enum PostgresError {
   UNDEFINED_FILE = '58P01',
   /** Class 58 - System Error (errors external to PostgreSQL itself): [E] duplicate_file */
   DUPLICATE_FILE = '58P02',
-  /** Class 72 - Snapshot Failure: [E] snapshot_too_old */
-  SNAPSHOT_TOO_OLD = '72000',
   /** Class F0 - Configuration File Error: [E] config_file_error */
   CONFIG_FILE_ERROR = 'F0000',
   /** Class F0 - Configuration File Error: [E] lock_file_exists */