Update changelog for v4.88.0

[github-actions]

Added

• mysql_cdc: Added integration tests validating MySQL CDC connection drop and reconnection scenarios with zero data loss. (@mmatczuk, #4241)
• oracledb_cdc: Added multi-tenant support for Oracle CDC input to handle both container and non-container databases. (@josephwoodward, #4237)
• oracledb_cdc: Added source timestamp metadata to Oracle CDC messages to propagate the redo log timestamp to consumers. (@josephwoodward, #4250)
• otlp: Added OpenTelemetry metrics exporter supporting both gRPC and HTTP protocols. (@mmatczuk, #4230)

Fixed

• amqp1: Fixed data race in randomString by replacing non-goroutine-safe package-level rand with thread-safe top-level rand.Intn. (@mmatczuk, #4260)
• general: Fixed Docker latest tag for connect image from incorrect latest-cloud to latest. (@mmatczuk, #4267)
• mysql_cdc: Fixed snapshot column order consistency by using deterministic primary key slice iteration instead of non-deterministic map iteration. (@josephwoodward, #4262)
• postgresql: Fixed handling of tsvector type in PostgreSQL replication decoder to return raw PostgreSQL text representation. (@mmatczuk, #4261)
• protobuf: Fixed memory leak in hyperpb parser caused by pool holding unused messages and added profile-guided optimization support. (@mmatczuk, #4240)

Changed

• iceberg: Updated Iceberg fallback behavior to infer column type when schema doesn't contain the field, enabling support for transforms. (@rockwotj, #4263)
• oracledb_cdc: Switched from buffering all redo events to streaming them through a callback to reduce memory allocation. (@josephwoodward, #4243)

[claude]

Commits
LGTM

Review
Changelog-only PR adding v4.88.0 entries. No Go code or tests changed, so project pattern and test rules do not apply here.

LGTM