build(deps): bump alembic from 1.17.2 to 1.18.2

[dependabot]

Bumps alembic from 1.17.2 to 1.18.2.

Release notes

Sourced from alembic's releases.

1.18.2

Released: January 28, 2026

usecase

• [usecase] [operations] The primary_key parameter on Column is now honored when Operations.add_column() is used, and will emit the "PRIMARY KEY" keyword inline within the ADD COLUMN directive. This is strictly a syntax enhancement; no attempt is made to reconcile the column's primary key status with any existing primary key constraint or particular backend limitations on adding columns to the primary key.

  References: #1232

• [usecase] [operations] Added inline_references parameter to Operations.add_column() which allows rendering of REFERENCES clauses inline within the ADD COLUMN directive rather than as a separate ADD CONSTRAINT directive. This syntax is supported by PostgreSQL, Oracle, MySQL 5.7+, and MariaDB 10.5+, and can provide performance benefits on large tables by avoiding full table validation when adding a nullable foreign key column.

  References: #1780

bug

• [bug] [typing] Fixed typing issue where the AlterColumnOp.server_default and AlterColumnOp.existing_server_default parameters failed to accommodate common SQLAlchemy SQL constructs such as null() and text(). Pull request courtesy Sebastian Kreft.

  References: #1669

1.18.1

Released: January 14, 2026

bug

• [bug] [autogenerate] Fixed issue in new plugin system where the configured logger was not correctly using the __name__ token to identify the logger.

  References: #1779

• [bug] [operations] Revised the change regarding SQLAlchemy 2.1 and deprecation warnings related to isolate_from_table=True. Further developments in release 2.1 have revised how this parameter will be modified.

... (truncated)

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[dependabot]

Superseded by #657.