chore(main): release 1.23.0

[release-please]

🤖 I have created a release beep boop

1.23.0 (2026-01-16)

Features

• Add dialect connection property (#710) (2e92beb)
• Add option to decode NUMERIC to string (#717) (a2fdf7b)
• Send string params as untyped values to Spanner (#720) (4de7250)
• Support Prepare for client-side statements (#726) (3a2917f)

Bug Fixes

• Correctly decode specific PG JSONB and NUMERIC types (#725) (032afab)
• Only close the connector once the usage count reaches zero (#718) (60cc893)
• Update protobuf monorepo (#721) (a79356f)
• Update protobuf monorepo (#723) (3f48e14)

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