ci: Upgrade size-limit

[AbhiPrasad]

As part of #7366 this PR upgrades our size-limit library.

It also goes ahead and upgrade webpack usage throughout the codebase to use the latest webpack 5 version so everything is synced up.

[AbhiPrasad]

Although #7366 was closed, we can still merge this in!

[github-actions]

size-limit report 📦

Path	Size
@sentry/browser - ES5 CDN Bundle (gzipped + minified)	20.88 KB (+3.82% 🔺)
@sentry/browser - ES5 CDN Bundle (minified)	62.2 KB (-0.5% 🔽)
@sentry/browser - ES6 CDN Bundle (gzipped + minified)	19.61 KB (+4.58% 🔺)
@sentry/browser - ES6 CDN Bundle (minified)	55.29 KB (-0.38% 🔽)
@sentry/browser - Webpack (gzipped + minified)	20.56 KB (+0.29% 🔺)
@sentry/browser - Webpack (minified)	62.32 KB (-6.98% 🔽)
@sentry/react - Webpack (gzipped + minified)	20.6 KB (+0.36% 🔺)
@sentry/nextjs Client - Webpack (gzipped + minified)	47.47 KB (-1.67% 🔽)
@sentry/browser + @sentry/tracing - ES5 CDN Bundle (gzipped + minified)	28.26 KB (+3.68% 🔺)
@sentry/browser + @sentry/tracing - ES6 CDN Bundle (gzipped + minified)	26.75 KB (+4.82% 🔺)
@sentry/replay ES6 CDN Bundle (gzipped + minified)	44.41 KB (+3.02% 🔺)
@sentry/replay - Webpack (gzipped + minified)	37.56 KB (+1.08% 🔺)
@sentry/browser + @sentry/tracing + @sentry/replay - ES6 CDN Bundle (gzipped + minified)	62.82 KB (+3.15% 🔺)
@sentry/browser + @sentry/replay - ES6 CDN Bundle (gzipped + minified)	55.86 KB (+3% 🔺)

[Lms24]

Nice! I guess the measurement changes are results of slightly different size measurement methodologies?

[AbhiPrasad]

Nice! I guess the measurement changes are results of slightly different size measurement methodologies?

It seems like this is the case, but I'm going to dig in and investigate more.

[AbhiPrasad]

Gonna close this for now to come back to