chore(main): release 3.55.0

[release-please]

🤖 I have created a release beep boop

3.55.0 (2025-05-27)

Features

• Add a last field in the PartialResultSet (d532d57)
• Add throughput_mode to UpdateDatabaseDdlRequest to be used by Spanner Migration Tool. See https://github.com/GoogleCloudPlatform/spanner-migration-tool (d532d57)
• Support fine-grained permissions database roles in connect (#1338) (064d9dc)

Bug Fixes

• E2E tracing metadata append issue (#1357) (3943885)
• Pass through kwargs in dbapi connect (#1368) (aae8d61)
• Remove setup.cfg configuration for creating universal wheels (#1324) (e064474)

Documentation

• A comment for field chunked_value in message .google.spanner.v1.PartialResultSet is changed (d532d57)
• A comment for field precommit_token in message .google.spanner.v1.PartialResultSet is changed (d532d57)
• A comment for field precommit_token in message .google.spanner.v1.ResultSet is changed (d532d57)
• A comment for field query_plan in message .google.spanner.v1.ResultSetStats is changed (d532d57)
• A comment for field row_count_lower_bound in message .google.spanner.v1.ResultSetStats is changed (d532d57)
• A comment for field row_type in message .google.spanner.v1.ResultSetMetadata is changed (d532d57)
• A comment for field rows in message .google.spanner.v1.ResultSet is changed (d532d57)
• A comment for field stats in message .google.spanner.v1.PartialResultSet is changed (d532d57)
• A comment for field stats in message .google.spanner.v1.ResultSet is changed (d532d57)
• A comment for field values in message .google.spanner.v1.PartialResultSet is changed (d532d57)
• A comment for message ResultSetMetadata is changed (d532d57)
• A comment for message ResultSetStats is changed (d532d57)
• Fix markdown formatting in transactions page (#1377) (de322f8)

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