build(deps-dev): bump timecop from 0.9.4 to 0.9.10

Bumps [timecop](https://github.com/travisjeffery/timecop) from 0.9.4 to 0.9.10.
- [Changelog](https://github.com/travisjeffery/timecop/blob/master/History.md)
- [Commits](travisjeffery/timecop@v0.9.4...v0.9.10)

---
updated-dependencies:
- dependency-name: timecop
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Gemfile.lock

@@ -341,7 +341,7 @@ GEM
     textacular (5.4.0)
       activerecord (>= 5.0, < 6.2)
     thor (1.3.2)
-    timecop (0.9.4)
+    timecop (0.9.10)
     timeout (0.4.1)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)