Bump fastimage from 2.1.3 to 2.1.4

Bumps [fastimage](https://github.com/sdsykes/fastimage) from 2.1.3 to 2.1.4.
- [Release notes](https://github.com/sdsykes/fastimage/releases)
- [Commits](sdsykes/fastimage@v2.1.3...v2.1.4)

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

Gemfile.lock

@@ -30,7 +30,7 @@ GEM
       thor
     faraday (0.15.2)
       multipart-post (>= 1.2, < 3)
-    fastimage (2.1.3)
+    fastimage (2.1.4)
     ffi (1.9.25)
     hikidoc (0.1.0)
     jasmine (2.99.0)