chore: update opentelemetry-api requirement from ~> 1.4.0 to >= 1.4, < 1.6

Updates the requirements on [opentelemetry-api](https://github.com/open-telemetry/opentelemetry-ruby) to permit the latest version.
- [Release notes](https://github.com/open-telemetry/opentelemetry-ruby/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-ruby/blob/main/api/CHANGELOG.md)
- [Commits](open-telemetry/opentelemetry-ruby@opentelemetry-api/v1.4.0...opentelemetry-api/v1.5.0)

---
updated-dependencies:
- dependency-name: opentelemetry-api
  dependency-type: direct:production
...

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

Author: dependabot[bot]

helpers/sql/opentelemetry-helpers-sql.gemspec

@@ -25,7 +25,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ['lib']
   spec.required_ruby_version = ">= #{File.read(File.expand_path('../../gemspecs/RUBY_REQUIREMENT', __dir__))}"
 
-  spec.add_dependency 'opentelemetry-api', '~> 1.4.0'
+  spec.add_dependency 'opentelemetry-api', '>= 1.4', '< 1.6'
 
   spec.add_development_dependency 'appraisal', '~> 2.5'
   spec.add_development_dependency 'bundler', '~> 2.4'