chore(main): release 1.22.0

[release-please]

🤖 I have created a release beep boop

1.22.0 (2025-12-15)

Features

• Add Split function to parser (#634) (302e860)
• Add support for multi-sql using next_result_set (#676) (8d068d1)
• Add support for statement-scoped connection state (#599) (5a158c3)
• Add TimestampBound option to ExecOptions (#522) (fc78709)
• Support CREATE DATABASE with extra statements (#629) (e09de0b)
• Support multi-statement SQL strings in QueryContext (#638) (019442f)
• Support statement_timeout and transaction_timeout property (#578) (b542646)

Bug Fixes

• Backslash at end of string was misinterpreted (#651) (fc2fdd5)
• Close iterator on error (#644) (c0023ee)
• Dollar-quote tags may not contain whitespaces (#606) (db609ec)
• Support e-strings for PostgreSQL (#607) (d050b1c)
• Update all dependencies (#588) (2e97f4c)
• Update all dependencies (#639) (2311ffb)
• Update all dependencies (#646) (b9dfc57)
• Update all dependencies (#692) (af69259)
• Update dependency io.grpc:grpc-bom to v1.77.0 (#640) (a7cab7e)
• Update dependency io.netty:netty-transport-native-epoll to v4.2.8.final (#694) (4ab3748)
• Update module github.com/testcontainers/testcontainers-go to v0.40.0 (#602) (822b5a4)
• Update protobuf monorepo (#633) (21cbfa9)
• Update protobuf monorepo (#671) (d8fba2d)

Performance Improvements

• Improve checksum calculation (#688) (6fb5cc8)

Documentation

• Update spannerlib-python documentation (#685) (30e6339)
• Update spannerlmockserver documentation (#684) (22aa6eb)

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[release-please]

🤖 Created releases:

• v1.22.0

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