chore(deps): bump alembic from 1.15.1 to 1.16.2

[dependabot]

Bumps alembic from 1.15.1 to 1.16.2.

Release notes

Sourced from alembic's releases.

1.16.2

Released: June 16, 2025

bug

• [bug] [autogenerate] Fixed issue where dialect-specific keyword arguments in dialect_kwargs were not rendered when rendering the Operations.create_foreign_key() operation. This prevented dialect-specific keywords from being rendered using custom Rewriter recipes that modify ops.CreateForeignKeyOp, similar to other issues such as #1635. Pull request courtesy Justin Malin.

  References: #1671

• [bug] [command] Fixed rendering of pyproject.toml to include two newlines when appending content to an existing file. Pull request courtesy Jonathan Vanasco.

  References: #1679

1.16.1

Released: May 21, 2025

bug

• [bug] [command] Fixed regression caused by the pathlib refactoring that removed the use of Config.get_template_directory() as the canonical source of templates; the method is still present however it no longer would be consulted for a custom config subclass, as was the case with flask-migrate.

  References: #1660

• [bug] [command] Fixed regression caused by the pathlib refactoring where the "missing template" error message failed to render the name of the template that could not be found.

  References: #1659

1.16.0

Released: May 21, 2025

feature

• [feature] [environment] Added optional PEP 621 support to Alembic, allowing all source code

... (truncated)

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[m-revetria]

@dependabot rebase