Update async-http requirement from >= 0.38.1, < 0.62.0 to >= 0.38.1, < 0.65.0

Updates the requirements on [async-http](https://github.com/socketry/async-http) to permit the latest version.
- [Release notes](https://github.com/socketry/async-http/releases)
- [Changelog](https://github.com/socketry/async-http/blob/main/release.cert)
- [Commits](socketry/async-http@v0.38.1...v0.64.0)

---
updated-dependencies:
- dependency-name: async-http
  dependency-type: direct:production
...

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

Author: dependabot[bot]

shodanz.gemspec

@@ -20,7 +20,7 @@ Gem::Specification.new do |spec|
   end
   spec.require_paths = ['lib']
 
-  spec.add_dependency 'async-http', '>= 0.38.1', '< 0.62.0'
+  spec.add_dependency 'async-http', '>= 0.38.1', '< 0.65.0'
   spec.add_dependency 'async', '>= 1.17.1', '< 2.9.0'
 
   spec.add_development_dependency 'async-rspec', '~> 1.17.0'