fix(publish): Ensure @sentry/hub is published in v7

[Lms24]

Since we deleted @sentry/hub in #10530, we also removed the craft NPM target for the hub package. Given that the craft config is always taken from develop (generally, the default branch of the repository), Craft no longer published @sentry/hub when we cut a release from our v7 branch.

Unfortunately, the NPM target does not support an optional onlyIfPresent configuration, meaning for now, we have to continue publishing a @sentry/hub placeholder package when we cut a release from develop (i.e. our v8 branch at the moment).

I'll spend some time trying to adjust our publishing/craft process to finally unblock us here. We shouldn't have to continue publishing a placeholder just to ensure we can publish v7 correctly.

[github-actions]

size-limit report 📦

Path	Size
@sentry/browser (incl. Tracing, Replay, Feedback) - Webpack (gzipped)	77.82 KB (0%)
@sentry/browser (incl. Tracing, Replay) - Webpack (gzipped)	69.06 KB (0%)
@sentry/browser (incl. Tracing, Replay with Canvas) - Webpack (gzipped)	72.98 KB (0%)
@sentry/browser (incl. Tracing, Replay) - Webpack with treeshaking flags (gzipped)	62.67 KB (0%)
@sentry/browser (incl. Tracing) - Webpack (gzipped)	33.25 KB (0%)
@sentry/browser (incl. browserTracingIntegration) - Webpack (gzipped)	33.15 KB (0%)
@sentry/browser (incl. Feedback) - Webpack (gzipped)	31.16 KB (0%)
@sentry/browser (incl. sendFeedback) - Webpack (gzipped)	31.16 KB (0%)
@sentry/browser - Webpack (gzipped)	22.43 KB (0%)
@sentry/browser (incl. Tracing, Replay, Feedback) - ES6 CDN Bundle (gzipped)	76.11 KB (+0.02% 🔺)
@sentry/browser (incl. Tracing, Replay) - ES6 CDN Bundle (gzipped)	67.64 KB (+0.06% 🔺)
@sentry/browser (incl. Tracing) - ES6 CDN Bundle (gzipped)	33.6 KB (+0.05% 🔺)
@sentry/browser - ES6 CDN Bundle (gzipped)	24.71 KB (+0.06% 🔺)
@sentry/browser (incl. Tracing, Replay) - ES6 CDN Bundle (minified & uncompressed)	212.88 KB (+0.04% 🔺)
@sentry/browser (incl. Tracing) - ES6 CDN Bundle (minified & uncompressed)	101.5 KB (+0.07% 🔺)
@sentry/browser - ES6 CDN Bundle (minified & uncompressed)	74.01 KB (+0.09% 🔺)
@sentry/browser (incl. Tracing) - ES5 CDN Bundle (gzipped)	36.83 KB (+0.04% 🔺)
@sentry/react (incl. Tracing, Replay) - Webpack (gzipped)	69.43 KB (0%)
@sentry/react - Webpack (gzipped)	22.45 KB (0%)
@sentry/nextjs Client (incl. Tracing, Replay) - Webpack (gzipped)	87.19 KB (+0.11% 🔺)
@sentry/nextjs Client - Webpack (gzipped)	50.36 KB (+0.01% 🔺)
@sentry-internal/feedback - Webpack (gzipped)	17.12 KB (0%)