build(deps): bump testtools from 2.7.0 to 2.7.1

[dependabot[bot]]

Bumps testtools from 2.7.0 to 2.7.1.

Changelog

Sourced from testtools's changelog.

2.7.1

Improvements

• Remove various unused imports. (Jelmer Vernooij)

• Fix build backend. This should prevent version from being set to 0.0.0 when building wheels. (Jelmer Vernooij, #363)

Commits

• 48d7c5d Fix build backend, addressing version issues. Fixes #363 (#366)
• 604d4fc Merge pull request #364 from jelmer/ruff
• df1883a Apply some unsafe ruff fixes
• c4763ff Apply ruff fixes; mostly removing unused imports
• See full diff in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot show ignore conditions` will show all of the ignore conditions of the specified dependency - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)