[1.x]: bump vimeo/psalm from 5.25.0 to 5.26.1 (#429)

Bumps [vimeo/psalm](https://github.com/vimeo/psalm) from 5.25.0 to 5.26.1.
- [Release notes](https://github.com/vimeo/psalm/releases)
- [Commits](vimeo/psalm@5.25.0...5.26.1)

---
updated-dependencies:
- dependency-name: vimeo/psalm
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]