test(e2e): Enable nuxt-5 as optional

[s1gr1d]

Re-enable after it was disabled: https://github.com/getsentry/sentry-javascript/pull/21524/changes

[s1gr1d]

The nuxt-5 test keeps hanging. pnpm finishes resolution and then deadlocks at the resolution-to-linking handoff.

I debugged this a bit and it seems to be connected to the pnpm version. With 11.10.0 it works (CI uses 9.15.9). Could be a pnpm bug (not being able to handle the nightly versions).

Update:

It's not pnpm but maybe Nuxt. I bisected the nightly versions and could find the culprit versions:

// install works
"5.0.0-29660749.95bb4fdd",
// deadlocks
"5.0.0-29660829.8c18535a",

[github-actions]

This pull request has gone three weeks without activity. In another week, I will close it.

But! If you comment or otherwise update it, I will reset the clock, and if you apply the label PR: no-auto-close I will leave it alone ... forever!