Update trial button copy

[iskyOS]

Before you merge this PR, please review the following:

Blog post

• [ ] Checked title case (This is correct. This Is Not Correct)
• [ ] Updated publishDate
• [ ] Updated authors
• [ ] Updated and checked slug
• [ ] Proofread for spelling and grammar errors
• [ ] Checked for consistent tone and voice throughout via Grammarly
• [ ] Ensured all links are working correctly
• [ ] Added relevant tags and categories
• [ ] Optimized meta description
• [ ] Included a new hero and social/OG image
• [ ] Uploaded images to Google Storage
• [ ] Formatted text for readability (headings, bullet points, etc.)
• [ ] Added image alt text
• [ ] Ran Markdown linter

Other

• [ ] This is not a blog post

[netlify[bot]]

✅ Deploy Preview for sourcegraph ready!

Name	Link
🔨 Latest commit	bcdba6f0ff2e2c97001c12ed1e4ad95fe550d9b5
🔍 Latest deploy log	https://app.netlify.com/sites/sourcegraph/deploys/6707033589b35d00082012e7
😎 Deploy Preview	https://deploy-preview-7287--sourcegraph.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.