7.0.0-rc.0

• (breaking) feat(nextjs): Make tracing package treeshakable (#5166)
• fix(browser): Fix memory leak in addEventListener instrumentation (#5147)
• fix(tracing): Don't use querySelector when not available (#5160)
• fix(utils): Fix infinite recursion in dropUndefinedKeys (#5163)
• ref(build): Use rollup to build AWS lambda layer (#5146)
• ref(core): Actually ensure attachments are added to the envelope (#5159)
• ref(core): Make hint callback argument non-optional (#5141)