Update ruby-openai requirement from ~> 5.0 to >= 5, < 7

Updates the requirements on [ruby-openai](https://github.com/alexrudall/ruby-openai) to permit the latest version.
- [Release notes](https://github.com/alexrudall/ruby-openai/releases)
- [Changelog](https://github.com/alexrudall/ruby-openai/blob/main/CHANGELOG.md)
- [Commits](alexrudall/ruby-openai@v5.2.0...v6.3.1)

---
updated-dependencies:
- dependency-name: ruby-openai
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Gemfile.lock

@@ -5,7 +5,7 @@ PATH
       async (~> 2.6)
       dotenv (~> 2.8.0)
       dry-monads (~> 1.6)
-      ruby-openai (~> 5.0)
+      ruby-openai (>= 5, < 7)
       slack-ruby-client (~> 2.x)
       zeitwerk (~> 2.6.6)
 
@@ -37,8 +37,8 @@ GEM
       concurrent-ruby (~> 1.0)
       dry-core (~> 1.0, < 2)
       zeitwerk (~> 2.6)
-    event_stream_parser (0.3.0)
-    faraday (2.7.11)
+    event_stream_parser (1.0.0)
+    faraday (2.8.1)
       base64
       faraday-net_http (>= 2.0, < 3.1)
       ruby2_keywords (>= 0.0.4)
@@ -97,8 +97,8 @@ GEM
     rubocop-performance (1.20.1)
       rubocop (>= 1.48.1, < 2.0)
       rubocop-ast (>= 1.30.0, < 2.0)
-    ruby-openai (5.2.0)
-      event_stream_parser (>= 0.3.0, < 1.0.0)
+    ruby-openai (6.3.1)
+      event_stream_parser (>= 0.3.0, < 2.0.0)
       faraday (>= 1)
       faraday-multipart (>= 1)
     ruby-progressbar (1.13.0)

gold_miner.gemspec

@@ -34,7 +34,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency "async", "~> 2.6"
   spec.add_dependency "dotenv", "~> 2.8.0"
   spec.add_dependency "dry-monads", "~> 1.6"
-  spec.add_dependency "ruby-openai", "~> 5.0"
+  spec.add_dependency "ruby-openai", ">= 5", "< 7"
   spec.add_dependency "slack-ruby-client", "~> 2.x"
   spec.add_dependency "zeitwerk", "~> 2.6.6"