Update psych requirement from ~> 3 to ~> 5

Updates the requirements on [psych](https://github.com/ruby/psych) to permit the latest version.
- [Release notes](https://github.com/ruby/psych/releases)
- [Commits](ruby/psych@v3.0.0...v5.1.2)

---
updated-dependencies:
- dependency-name: psych
  dependency-type: direct:development
...

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

trino-client.gemspec

@@ -28,5 +28,5 @@ Gem::Specification.new do |gem|
   gem.add_development_dependency "addressable", "~> 2.8.1" # 2.5.0 doesn't support Ruby 1.9.3
   gem.add_development_dependency "simplecov", "~> 0.22.0"
   gem.add_development_dependency "standard", "~> 1.30.1"
-  gem.add_development_dependency "psych", "~> 3"
+  gem.add_development_dependency "psych", "~> 5"
 end