Bump thor from 1.3.1 to 1.4.0

Bumps [thor](https://github.com/rails/thor) from 1.3.1 to 1.4.0.
- [Release notes](https://github.com/rails/thor/releases)
- [Commits](rails/thor@v1.3.1...v1.4.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Gemfile.lock

@@ -31,7 +31,7 @@ GEM
       sfl
     test-unit (3.6.2)
       power_assert
-    thor (1.3.1)
+    thor (1.4.0)
 
 PLATFORMS
   ruby