chore(deps): bump mysqlclient from 2.2.7 to 2.3.0 in /mailbox-app

[dependabot]

Bumps mysqlclient from 2.2.7 to 2.3.0.

Release notes

Sourced from mysqlclient's releases.

v2.3.0

What's Changed

• Expose Cursor.warning_count by @​methane with @​Copilot in PyMySQL/mysqlclient#780
• Raise ProgrammingError immediately on concurrent connection use instead of blocking by @​methane with @​Copilot in PyMySQL/mysqlclient#781
• deprecate exception classes in Cursor attributes by @​methane in PyMySQL/mysqlclient#782
• add dependabot config for actions by @​methane in PyMySQL/mysqlclient#783
• Bump the all-dependencies group with 5 updates by @​dependabot[bot] in PyMySQL/mysqlclient#784
• Make Cursor an iterator conforming to DB-API 2.0 by @​methane with @​Copilot in PyMySQL/mysqlclient#785
• use const for docstrings by @​methane in PyMySQL/mysqlclient#786
• remove unused macros by @​methane in PyMySQL/mysqlclient#787
• Quote procname and user variables with backticks in callproc by @​methane with @​Copilot in PyMySQL/mysqlclient#789
• deprecate reconnect parameter of ping() by @​methane in PyMySQL/mysqlclient#790
• Bump actions/checkout from 6 to 7 in the all-dependencies group by @​dependabot[bot] in PyMySQL/mysqlclient#791
• update ruff to 0.16 by @​methane in PyMySQL/mysqlclient#794
• Bump the all-dependencies group across 1 directory with 3 updates by @​dependabot[bot] in PyMySQL/mysqlclient#793
• Add Windows ARM64 build by @​ndabas in PyMySQL/mysqlclient#796
• timedelta: support microseconds and negative values by @​methane in PyMySQL/mysqlclient#795
• Add Python 3.15 CI support by @​methane in PyMySQL/mysqlclient#797
• Enhance executemany() to use multistatement by @​methane in PyMySQL/mysqlclient#798
• release v2.3.0 by @​methane in PyMySQL/mysqlclient#799

New Contributors

• @​methane with @​Copilot made their first contribution in PyMySQL/mysqlclient#780
• @​dependabot[bot] made their first contribution in PyMySQL/mysqlclient#784
• @​ndabas made their first contribution in PyMySQL/mysqlclient#796

Full Changelog: PyMySQL/mysqlclient@v2.2.8...v2.3.0

v2.2.8

What's Changed

• support local_infile_dir option by @​RasmusKard in PyMySQL/mysqlclient#755
• update readthedocs conf by @​methane in PyMySQL/mysqlclient#759
• update mariadb-connector to 3.4.8 by @​methane in PyMySQL/mysqlclient#773
• add Python 3.14 and drop Python 3.9 by @​methane in PyMySQL/mysqlclient#774
• update pyproject.toml to support Python 3.14 by @​MysticEntity-dev in PyMySQL/mysqlclient#772
• free threading: do not enable GIL by @​methane in PyMySQL/mysqlclient#775
• release v2.2.8 by @​methane in PyMySQL/mysqlclient#776

New Contributors

• @​RasmusKard made their first contribution in PyMySQL/mysqlclient#755
• @​MysticEntity-dev made their first contribution in PyMySQL/mysqlclient#772

Full Changelog: PyMySQL/mysqlclient@v2.2.7...v2.2.8

Changelog

Sourced from mysqlclient's changelog.

What's new in 2.3.0

Release: 2026-09-07

• Concurrent use of the same Connection object from multiple threads now raises ProgrammingError immediately instead of causing undefined behavior. Applications should use separate connections for concurrent operations. (#781)

• Add an optional executemany_fallback="multi" connection option. When enabled, Cursor.executemany() can batch eligible INSERT, REPLACE, UPDATE, and DELETE statements into multi-statement queries instead of executing them one at a time. This can significantly improve performance of operations such as SQLAlchemy bulk UPDATEs. The default remains "loop", and the existing multi-row INSERT/REPLACE optimization is unchanged. (#798)

• Add Cursor.warning_count to expose the warning count for the last statement. (#780)

• Make Cursor itself an iterator as specified by DB-API 2.0. iter(cursor) is cursor and next(cursor) fetches the next row. (#785)

• Quote stored procedure names and user variable names in Cursor.callproc(), allowing names containing reserved words or special characters. (#789)

• Fix conversion of datetime.timedelta values to support microseconds and negative values correctly. (#795)

• Add Windows ARM64 wheels. (#796)

• Test with Python 3.15 and free-threaded Python 3.15, and update the MariaDB Connector/C used for Windows wheels to 3.4.9. (#797)

• Add Connection.more_results() for checking whether additional results remain after a multi-statement query. (#798)

• Deprecate accessing exception classes such as ProgrammingError and OperationalError as Cursor attributes. Access them from the MySQLdb package instead. (#782)

• Deprecate the reconnect parameter of Connection.ping(). Calling ping() without the parameter is unchanged. (#790)

====================== What's new in 2.2.8

... (truncated)

Commits

• 6cc0755 release v2.3.0 (#799)
• 543f588 Enhance executemany() to use multistatement (#798)
• 552f7c7 Add Python 3.15 CI support (#797)
• 8a3f442 timedelta: support microseconds and negative values (#795)
• aa1df8b Add Windows ARM64 build (#796)
• 825218f Bump the all-dependencies group across 1 directory with 3 updates (#793)
• c0ff08f update ruff to 0.16 (#794)
• 4742adc ci: pin action versions
• 2acdc55 Bump actions/checkout from 6 to 7 in the all-dependencies group (#791)
• 94412ad deprecate reconnect parameter of ping() (#790)
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