Bump thor from 1.3.2 to 1.4.0 in /gemfiles/typecheck

Bumps [thor](https://github.com/rails/thor) from 1.3.2 to 1.4.0.
- [Release notes](https://github.com/rails/thor/releases)
- [Commits](rails/thor@v1.3.2...v1.4.0)

---
updated-dependencies:
- dependency-name: thor
  dependency-version: 1.4.0
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

gemfiles/typecheck/Gemfile.lock

@@ -108,7 +108,7 @@ GEM
       unicode-display_width (>= 1.1.1, < 4)
     test-unit (3.7.0)
       power_assert
-    thor (1.3.2)
+    thor (1.4.0)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     unicode-display_width (3.1.4)