chore(deps-dev): bump fiddle from 1.1.6 to 1.1.8

Bumps [fiddle](https://github.com/ruby/fiddle) from 1.1.6 to 1.1.8.
- [Release notes](https://github.com/ruby/fiddle/releases)
- [Changelog](https://github.com/ruby/fiddle/blob/master/NEWS.md)
- [Commits](ruby/fiddle@v1.1.6...v1.1.8)

---
updated-dependencies:
- dependency-name: fiddle
  dependency-version: 1.1.8
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -22,7 +22,7 @@ GEM
     ffi (1.17.1-x86_64-darwin)
     ffi (1.17.1-x86_64-linux-gnu)
     ffi (1.17.1-x86_64-linux-musl)
-    fiddle (1.1.6)
+    fiddle (1.1.8)
     get_process_mem (1.0.0)
       bigdecimal (>= 2.0)
       ffi (~> 1.0)