fix(node): Improve logging in express scope tag match test

[lobsterkatie]

This adds logging of the received and expected values when the tags in the express scope separation test don't match, for easier debugging.

[github-actions]

size-limit report 📦

Path	Size
@sentry/browser - ES5 CDN Bundle (gzipped + minified)	19.41 KB (0%)
@sentry/browser - ES5 CDN Bundle (minified)	60.09 KB (0%)
@sentry/browser - ES6 CDN Bundle (gzipped + minified)	18.04 KB (-0.02% 🔽)
@sentry/browser - ES6 CDN Bundle (minified)	52.97 KB (0%)
@sentry/browser - Webpack (gzipped + minified)	19.76 KB (0%)
@sentry/browser - Webpack (minified)	64.28 KB (0%)
@sentry/react - Webpack (gzipped + minified)	19.79 KB (0%)
@sentry/nextjs Client - Webpack (gzipped + minified)	45.53 KB (0%)
@sentry/browser + @sentry/tracing - ES5 CDN Bundle (gzipped + minified)	25.86 KB (-0.01% 🔽)
@sentry/browser + @sentry/tracing - ES6 CDN Bundle (gzipped + minified)	24.28 KB (-0.01% 🔽)