ref(node): Improve Node manual test logging

[lobsterkatie]

This makes some small changes to the logs emitted by the manual tests in the node package, to make it a little cleaner and easier to see what's what.

Included changes:

• Use colorize function from release health tests in all test suites.
• Capture and display console logs in express test.
• Standardize success message across test suites.
• Use whitespace to separate each suite's logs from the next.

Before:

After:

[github-actions]

size-limit report 📦

Path	Size
@sentry/browser - ES5 CDN Bundle (gzipped + minified)	18.78 KB (-6.77% 🔽)
@sentry/browser - ES5 CDN Bundle (minified)	58.38 KB (-9.65% 🔽)
@sentry/browser - ES6 CDN Bundle (gzipped + minified)	17.54 KB (-6.99% 🔽)
@sentry/browser - ES6 CDN Bundle (minified)	52.61 KB (-9.26% 🔽)
@sentry/browser - Webpack (gzipped + minified)	19.33 KB (-16.83% 🔽)
@sentry/browser - Webpack (minified)	61.47 KB (-24.77% 🔽)
@sentry/react - Webpack (gzipped + minified)	19.35 KB (-16.87% 🔽)
@sentry/nextjs Client - Webpack (gzipped + minified)	42.81 KB (-10.91% 🔽)
@sentry/browser + @sentry/tracing - ES5 CDN Bundle (gzipped + minified)	24.43 KB (-6.3% 🔽)
@sentry/browser + @sentry/tracing - ES6 CDN Bundle (gzipped + minified)	23 KB (-6.05% 🔽)