chore(ci): Add Node 20 to the test matrix

[AbhiPrasad]

https://nodejs.org/en/blog/announcements/v20-release-announce

From reviewing the CHANGELOG (https://github.com/nodejs/node/blob/master/doc/changelogs/CHANGELOG_V20.md), there seems to be no changes that will affect us in the code.

See v19 CHANGELOG: https://github.com/nodejs/node/blob/master/doc/changelogs/CHANGELOG_V19.md

Notable things we can maybe pursue:

• Tracing Channel in diagnostic_channel API https://github.com/nodejs/node/blob/main/doc/changelogs/CHANGELOG_V19.md#tracing-channel-in-diagnostic_channel
• Add context about permissions: https://github.com/nodejs/node/blob/main/doc/changelogs/CHANGELOG_V20.md#permission-model
• ESM loader hooks

PR to add node 18 to SDK Ci: #5049

[AbhiPrasad]

Making CI even slower 😎

[github-actions]

size-limit report 📦

Path	Size
@sentry/browser - ES5 CDN Bundle (gzipped + minified)	20.97 KB (-0.36% 🔽)
@sentry/browser - ES5 CDN Bundle (minified)	65.48 KB (-0.28% 🔽)
@sentry/browser - ES6 CDN Bundle (gzipped + minified)	19.51 KB (-0.4% 🔽)
@sentry/browser - ES6 CDN Bundle (minified)	57.94 KB (-0.31% 🔽)
@sentry/browser - Webpack (gzipped + minified)	21.11 KB (-0.35% 🔽)
@sentry/browser - Webpack (minified)	68.89 KB (-0.26% 🔽)
@sentry/react - Webpack (gzipped + minified)	21.14 KB (-0.35% 🔽)
@sentry/nextjs Client - Webpack (gzipped + minified)	48.98 KB (-0.15% 🔽)
@sentry/browser + @sentry/tracing - ES5 CDN Bundle (gzipped + minified)	28.54 KB (-0.27% 🔽)
@sentry/browser + @sentry/tracing - ES6 CDN Bundle (gzipped + minified)	26.77 KB (-0.3% 🔽)
@sentry/replay ES6 CDN Bundle (gzipped + minified)	45.35 KB (0%)
@sentry/replay - Webpack (gzipped + minified)	39.28 KB (0%)
@sentry/browser + @sentry/tracing + @sentry/replay - ES6 CDN Bundle (gzipped + minified)	64.22 KB (-0.12% 🔽)
@sentry/browser + @sentry/replay - ES6 CDN Bundle (gzipped + minified)	57.19 KB (-0.13% 🔽)

[AbhiPrasad]

In b4fe61f I removed Node 20 from the remix/next.js integration tests. Will create follow up issues for these.

I think remix is also aware of Node 20 not being very cooperative: remix-run/remix#6099, let's wait till they get stuff fixed.