Bump thor from 1.2.1 to 1.4.0 in /spec/rails7/dummy

Bumps [thor](https://github.com/rails/thor) from 1.2.1 to 1.4.0.
- [Release notes](https://github.com/rails/thor/releases)
- [Commits](rails/thor@v1.2.1...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]

spec/rails7/dummy/Gemfile.lock

@@ -188,7 +188,7 @@ GEM
     stimulus-rails (1.0.2)
       railties (>= 6.0.0)
     strscan (3.0.1)
-    thor (1.2.1)
+    thor (1.4.0)
     timeout (0.2.0)
     turbo-rails (1.0.1)
       actionpack (>= 6.0.0)