Retrieve API Key step is after steps that use API key in Quickstart and all Integration guides

[albertkimjunior]

📚 Documentation Update

📘 Describe the current state of documentation What information is missing or could be improved?

📖 Suggested Improvement Describe your idea for the new/improved documentation.

🔍 Additional Context Any extra information to help us understand the change?

Thank you for helping us improve Agentops documentation!