fix(cdn): Fix es5 CDN bundles

[mydea]

We need to add packages to the ts plugin config, otherwise they are not correctly ES5 transpiled. I also added this to the checklist.

I will merge this PR into master and cut a release so we can do a bugfix release (there is already a feature on develop).

Closes #7541

[github-actions]

size-limit report 📦

Path	Size
@sentry/browser - ES5 CDN Bundle (gzipped + minified)	20.5 KB (-0.14% 🔽)
@sentry/browser - ES5 CDN Bundle (minified)	63.83 KB (-0.04% 🔽)
@sentry/browser - ES6 CDN Bundle (gzipped + minified)	19.19 KB (-0.02% 🔽)
@sentry/browser - ES6 CDN Bundle (minified)	56.92 KB (0%)
@sentry/browser - Webpack (gzipped + minified)	21.66 KB (0%)
@sentry/browser - Webpack (minified)	72.12 KB (0%)
@sentry/react - Webpack (gzipped + minified)	21.7 KB (0%)
@sentry/nextjs Client - Webpack (gzipped + minified)	52.02 KB (-0.07% 🔽)
@sentry/browser + @sentry/tracing - ES5 CDN Bundle (gzipped + minified)	27.81 KB (-17.63% 🔽)
@sentry/browser + @sentry/tracing - ES6 CDN Bundle (gzipped + minified)	26.13 KB (0%)
@sentry/replay ES6 CDN Bundle (gzipped + minified)	44.23 KB (0%)
@sentry/replay - Webpack (gzipped + minified)	38.28 KB (0%)
@sentry/browser + @sentry/tracing + @sentry/replay - ES6 CDN Bundle (gzipped + minified)	62.44 KB (0%)
@sentry/browser + @sentry/replay - ES6 CDN Bundle (gzipped + minified)	55.99 KB (+0.01% 🔺)

[Progdom]

This is still broken and not correctly outputting es5. Using are-you-es5.

❌ @sentry/browser is not ES5
❌ @sentry/integrations is not ES5

"@sentry/browser": "7.44.2",
"@sentry/integrations": "7.44.2",

[mydea]

This is only about the CDN bundles, not the NPM packages (which are-you-es5 checks, as far as I can tell?). If you are using the NPM modules, you have to take care of transpiling this to ES5 yourself!

At least I haven't found a way to make are-you-es5 work with a CDN bundle?