Build(deps): Bump parallel from 1.25.1 to 1.26.2 in /spec

Bumps [parallel](https://github.com/grosser/parallel) from 1.25.1 to 1.26.2.
- [Commits](grosser/parallel@v1.25.1...v1.26.2)

---
updated-dependencies:
- dependency-name: parallel
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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

spec/Gemfile.lock

@@ -7,7 +7,7 @@ GEM
     diff-lcs (1.5.1)
     json (2.7.2)
     language_server-protocol (3.17.0.3)
-    parallel (1.25.1)
+    parallel (1.26.2)
     parser (3.3.4.2)
       ast (~> 2.4.1)
       racc