gems: update opentelemetry-sdk requirement from ~> 1.2.0 to >= 1.2, < 1.10

Updates the requirements on [opentelemetry-sdk](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/sdk/CHANGELOG.md)
- [Commits](https://github.com/open-telemetry/opentelemetry-ruby/compare/opentelemetry-sdk/v1.2.0...opentelemetry-sdk/v1.2.1)

---
updated-dependencies:
- dependency-name: opentelemetry-sdk
  dependency-version: 1.2.1
  dependency-type: direct:production
...

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

dyndnsd.gemspec

@@ -32,9 +32,9 @@ Gem::Specification.new do |s|
   s.add_dependency 'base64', '~> 0.2.0' # needed for async
   s.add_dependency 'logger', '>= 1.6', '< 1.8'
   s.add_dependency 'metriks'
-  s.add_dependency 'opentelemetry-exporter-jaeger', '>= 0.22', '< 0.25'
+  s.add_dependency 'opentelemetry-exporter-jaeger', '~> 0.22.0'
   s.add_dependency 'opentelemetry-instrumentation-rack', '~> 0.22.0'
-  s.add_dependency 'opentelemetry-sdk', '~> 1.2.0'
+  s.add_dependency 'opentelemetry-sdk', '>= 1.2', '< 1.10'
   s.add_dependency 'rack', '~> 3.0'
   s.add_dependency 'rackup', '~> 2'
   s.add_dependency 'webrick', '>= 1.6.1'