Bump timecop from 0.9.2 to 0.9.8

Bumps [timecop](https://github.com/travisjeffery/timecop) from 0.9.2 to 0.9.8.
- [Changelog](https://github.com/travisjeffery/timecop/blob/master/History.md)
- [Commits](travisjeffery/timecop@v0.9.2...v0.9.8)

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

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

Gemfile.lock

@@ -505,7 +505,7 @@ GEM
     thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.3.0)
-    timecop (0.9.2)
+    timecop (0.9.8)
     timeout (0.4.1)
     tzinfo (1.2.11)
       thread_safe (~> 0.1)