Bump the ruby-dependencies group with 4 updates (heroku#1609)

Bumps the ruby-dependencies group with 4 updates: [rspec-core](https://github.com/rspec/rspec), [rspec-expectations](https://github.com/rspec/rspec), [rake](https://github.com/ruby/rake) and [json](https://github.com/ruby/json).


Updates `rspec-core` from 3.13.3 to 3.13.4
- [Changelog](https://github.com/rspec/rspec/blob/rspec-core-v3.13.4/rspec-core/Changelog.md)
- [Commits](rspec/rspec@rspec-core-v3.13.3...rspec-core-v3.13.4)

Updates `rspec-expectations` from 3.13.4 to 3.13.5
- [Changelog](https://github.com/rspec/rspec/blob/rspec-expectations-v3.13.5/rspec-expectations/Changelog.md)
- [Commits](rspec/rspec@rspec-expectations-v3.13.4...rspec-expectations-v3.13.5)

Updates `rake` from 13.2.1 to 13.3.0
- [Release notes](https://github.com/ruby/rake/releases)
- [Changelog](https://github.com/ruby/rake/blob/master/History.rdoc)
- [Commits](ruby/rake@v13.2.1...v13.3.0)

Updates `json` from 2.11.3 to 2.12.2
- [Release notes](https://github.com/ruby/json/releases)
- [Changelog](https://github.com/ruby/json/blob/master/CHANGES.md)
- [Commits](ruby/json@v2.11.3...v2.12.2)

---
updated-dependencies:
- dependency-name: rspec-core
  dependency-version: 3.13.4
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: ruby-dependencies
- dependency-name: rspec-expectations
  dependency-version: 3.13.5
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: ruby-dependencies
- dependency-name: rake
  dependency-version: 13.3.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: ruby-dependencies
- dependency-name: json
  dependency-version: 2.12.2
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: ruby-dependencies
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Gemfile.lock

@@ -6,7 +6,7 @@ GEM
       logger
     citrus (3.0.2)
     connection_pool (2.5.3)
-    diff-lcs (1.6.1)
+    diff-lcs (1.6.2)
     erubis (2.7.0)
     excon (0.110.0)
     heroics (0.1.3)
@@ -22,7 +22,7 @@ GEM
       rrrretry (~> 1)
       thor (~> 1)
       threaded (~> 0)
-    json (2.11.3)
+    json (2.12.2)
     logger (1.7.0)
     moneta (1.0.0)
     multi_json (1.15.0)
@@ -35,21 +35,21 @@ GEM
       moneta (~> 1.0.0)
       rate_throttle_client (~> 0.1.0)
     racc (1.8.1)
-    rake (13.2.1)
+    rake (13.3.0)
     rate_throttle_client (0.1.2)
     redis (5.4.0)
       redis-client (>= 0.22.0)
     redis-client (0.24.0)
       connection_pool
     rrrretry (1.0.0)
-    rspec-core (3.13.3)
+    rspec-core (3.13.4)
       rspec-support (~> 3.13.0)
-    rspec-expectations (3.13.4)
+    rspec-expectations (3.13.5)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-retry (0.6.2)
       rspec-core (> 3.3)
-    rspec-support (3.13.3)
+    rspec-support (3.13.4)
     thor (1.3.2)
     threaded (0.0.4)
     toml-rb (4.0.0)