chore(deps): update dependency ruby-openai to v7.3.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ruby-openai (changelog)	7.1.0 -> 7.3.0

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Release Notes

alexrudall/ruby-openai (ruby-openai)

v7.3.0

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Added

• Add ability to (with the right incantations) retrieve the chunks used by an Assistant file search - thanks to @​agamble for the addition!

v7.2.0

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Added

• Add ability to pass parameters to Files#list endpoint - thanks to @​parterburn!
• Add Velvet observability platform to README - thanks to @​philipithomas
• Add Assistants::Messages#delete endpoint - thanks to @​mochetts!

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Configuration

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