Bump fastimage from 2.2.6 to 2.2.7 (#12954)

Bumps [fastimage](https://github.com/sdsykes/fastimage) from 2.2.6 to 2.2.7.
- [Changelog](https://github.com/sdsykes/fastimage/blob/master/CHANGELOG)
- [Commits](sdsykes/fastimage@v2.2.6...v2.2.7)

---
updated-dependencies:
- dependency-name: fastimage
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Ryan McNeil <ryan.mcneil@oddball.io>

Gemfile.lock

@@ -413,7 +413,7 @@ GEM
       faraday (>= 0.9.0)
     faraday_middleware (0.14.0)
       faraday (>= 0.7.4, < 1.0)
-    fastimage (2.2.6)
+    fastimage (2.2.7)
     ffi (1.15.5)
     ffi (1.15.5-java)
     ffi (1.15.5-x64-mingw32)