Enable pyupgrade

[mdavidbennett]

This enables pyupgrade and applies all the changes it suggested. I also removed the unused MetricTypes type from metrics.py.

[Copilot]

Pull request overview

This PR enables Ruff’s pyupgrade (UP) ruleset and applies the resulting automated modernizations across the Python codebase, plus removes an unused metrics type alias.

Changes:

• Enable UP in pyproject.toml and apply Python 3.10+ typing/stdlib updates (PEP 604 unions, built-in generics, collections.abc imports).
• Update type annotations across models, stores, solvers, state managers, CLI, and utilities to match pyupgrade output.
• Remove unused MetricTypes alias from metrics.py.

Reviewed changes

Copilot reviewed 16 out of 16 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/certwrangler/utils.py	Switch Optional/List annotations to `
src/certwrangler/types.py	Replace Union/Dict usage with `
src/certwrangler/stores/vault.py	Modernize Pydantic model field annotations and dict types.
src/certwrangler/stores/local.py	Modernize union type annotation for _get_digest.
src/certwrangler/state_managers/local.py	Modernize dict/list/union annotations across state manager helpers and methods.
src/certwrangler/state_managers/dummy.py	Modernize annotations to built-in generics and `
src/certwrangler/solvers/lexicon.py	Update provider options and config typing to dict[...].
src/certwrangler/solvers/edgedns.py	Update request/response typing to dict[...] and `
src/certwrangler/shell.py	Update Click validator and dev shell annotations to built-in generics.
src/certwrangler/schema_migrations.py	Move Callable import to collections.abc and modernize migration typing.
src/certwrangler/models.py	Broad annotation modernization across core models/state management.
src/certwrangler/metrics.py	Remove unused MetricTypes and modernize callable/dict typing.
src/certwrangler/dns.py	Update DNS record list/tuple typing to built-in generics.
src/certwrangler/daemon.py	Modernize ThreadWithContext annotations and thread list typing.
src/certwrangler/controllers.py	Modernize client and list/tuple/union annotations.
pyproject.toml	Enable Ruff UP (pyupgrade) rules.

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