Bump docker-api from 2.2.0 to 2.3.0

Bumps [docker-api](https://github.com/swipely/docker-api) from 2.2.0 to 2.3.0.
- [Release notes](https://github.com/swipely/docker-api/releases)
- [Commits](https://github.com/swipely/docker-api/commits)

---
updated-dependencies:
- dependency-name: docker-api
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -145,13 +145,13 @@ GEM
     debug_inspector (1.2.0)
     diff-lcs (1.5.1)
     docile (1.4.0)
-    docker-api (2.2.0)
-      excon (>= 0.47.0)
+    docker-api (2.3.0)
+      excon (>= 0.64.0)
       multi_json
     drb (2.2.1)
     erubi (1.13.0)
     eventmachine (1.2.7)
-    excon (0.110.0)
+    excon (0.111.0)
     execjs (2.9.1)
     factory_bot (6.4.6)
       activesupport (>= 5.0.0)