Bump pg from 1.3.5 to 1.4.3 in /backend

[dependabot]

Bumps pg from 1.3.5 to 1.4.3.

Changelog

Sourced from pg's changelog.

== v1.4.3 [2022-08-09] Lars Kanis [email protected]

• Avoid memory bloat possible in put_copy_data in pg-1.4.0 to 1.4.2. #473
• Use Encoding::BINARY for JOHAB, removing some useless code. #472

== v1.4.2 [2022-07-27] Lars Kanis [email protected]

Bugfixes:

• Properly handle empty host parameter when connecting. #471
• Update Windows fat binary gem to OpenSSL-1.1.1q.

== v1.4.1 [2022-06-24] Lars Kanis [email protected]

Bugfixes:

• Fix another ruby-2.7 keyword warning. #465
• Allow PG::Error to be created without arguments. #466

== v1.4.0 [2022-06-20] Lars Kanis [email protected]

Added:

• Add PG::Connection#hostaddr, present since PostgreSQL-12. #453
• Add PG::Connection.conninfo_parse to wrap PQconninfoParse. #453

Bugfixes:

• Try IPv6 and IPv4 addresses, if DNS resolves to both. #452
• Re-add block-call semantics to PG::Connection.new accidently removed in pg-1.3.0. #454
• Handle client error after all data consumed in #copy_data for output. #455
• Avoid spurious keyword argument warning on Ruby 2.7. #456
• Change connection setup to respect connect_timeout parameter. #459
• Fix indefinite hang in case of connection error on Windows #458
• Set connection attribute of PG::Error in various places where it was missing. #461
• Fix transaction leak on early break/return. #463
• Update Windows fat binary gem to OpenSSL-1.1.1o and PostgreSQL-14.4.

Enhancements:

• Don't flush at each put_copy_data call, but flush at get_result. #462

Commits

• 441cb1e Update History for pg-1.4.3
• fff03df Bump VERSION to 1.4.3
• 9929ac9 Merge pull request #474 from larskanis/put_copy_data-flushing
• 54e22bc Do a blocking flush every 100 calls to put_copy_data
• 28b73d2 Merge pull request #472 from eregon/treat_johab_encoding_as_binary
• c9284ff Use Encoding::BINARY for JOHAB
• fc939f5 Usage of environment variables is fixed in Postgres-12
• d41fc0c Update Windows fat binary gem to OpenSSL-1.1.1q
• 757226c Bump VERSION to 1.4.2 and add release notes
• ce85904 Make SSL connections independent from files in ~/.postgresql
• Additional commits viewable in compare view

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Superseded by #776.