test(cli-e2e): fix E2E tests after --skipPlugins option added

[matejchalk]

• Fixes failing E2E tests after feat: implement skip-plugins option #730 was merged.
• Will look into how we can get GitHub Actions to trigger CI workflow for PRs from forks, and also skip Code PushUp upload (fails due to missing secrets).

[github-actions]

Code PushUp

🤨 Code PushUp report has both improvements and regressions – compared target commit ab7e204 with source commit e841532.

🏷️ Categories

🏷️ Category	⭐ Previous score	⭐ Current score	🔄 Score change
Performance	🔴 45	🔴 48
Code coverage	🟡 89	🟡 89
Accessibility	🟢 91	🟢 91	–
Best Practices	🟢 100	🟢 100	–
SEO	🟡 61	🟡 61	–
Bug prevention	🟢 100	🟢 100	–
Code style	🟢 99	🟢 99	–
Security	🟢 100	🟢 100	–
Updates	🟡 78	🟡 78	–
Custom checks	🟡 67	🟡 67	–

🗃️ Groups

👍 2 groups improved

🔌 Plugin	🗃️ Group	⭐ Previous score	⭐ Current score	🔄 Score change
Lighthouse	Performance	🔴 45	🔴 48
Code coverage	Code coverage metrics	🟡 89	🟡 89

18 other groups are unchanged.

🛡️ Audits

👍 6 audits improved, 👎 1 audit regressed, 13 audits changed without impacting score

🔌 Plugin	🛡️ Audit	📏 Previous value	📏 Current value	🔄 Value change
Lighthouse	Reduce unused CSS	🟨 Potential savings of 104 KiB	🟥 Potential savings of 91 KiB
Lighthouse	First Contentful Paint	🟥 3.1 s	🟨 2.9 s
Lighthouse	Speed Index	🟥 8.4 s	🟥 7.6 s
Lighthouse	Largest Contentful Paint	🟨 3.8 s	🟨 3.6 s
Lighthouse	First Meaningful Paint	🟨 3.1 s	🟨 3.0 s
Lighthouse	Time to Interactive	🟥 21.7 s	🟥 17.8 s
Code coverage	Branch coverage	🟨 83.4 %	🟨 83.4 %
Lighthouse	Total Blocking Time	🟥 14,530 ms	🟥 8,730 ms
Lighthouse	Minimizes main-thread work	🟥 27.8 s	🟥 22.9 s
Lighthouse	JavaScript execution time	🟥 14.9 s	🟥 10.9 s
Lighthouse	Metrics	🟩 21733	🟩 17792
Lighthouse	Avoids enormous network payloads	🟩 Total size was 1,786 KiB	🟩 Total size was 1,783 KiB
Lighthouse	Max Potential First Input Delay	🟥 4,350 ms	🟥 3,350 ms
Lighthouse	Eliminate render-blocking resources	🟥 Potential savings of 270 ms	🟥 Potential savings of 820 ms
Lighthouse	Server Backend Latencies	🟩 250 ms	🟩 80 ms
Lighthouse	Uses efficient cache policy on static assets	🟨 29 resources found	🟨 29 resources found
Lighthouse	Initial server response time was short	🟩 Root document took 310 ms	🟩 Root document took 390 ms
Lighthouse	Network Round Trip Times	🟩 20 ms	🟩 20 ms
Lighthouse	Avoids an excessive DOM size	🟥 2,190 elements	🟥 2,191 elements
Lighthouse	Cumulative Layout Shift	🟩 0.004	🟩 0

489 other audits are unchanged.