test(nx-plugin-e2e): refactor to use new test helper

[BioPhoton]

Precondition of #773

Included changes:

• use new test helper
• fix package name
• add skip flags to enable more tests
• test skip flags

[github-actions[bot]]

Code PushUp

🤨 Code PushUp report has both improvements and regressions – compared target commit 068ffb90c417e2dc2d56a81aee59c6416a403760 with source commit 1041524d4bb3af3d7b2c68d9339f38ecf0238499.

🕵️ See full comparison in Code PushUp portal 🔍

🏷️ Categories

🏷️ Category	⭐ Previous score	⭐ Current score	🔄 Score change
Performance	🔴 45	🟡 52
Code coverage	🟡 90	🟡 90
Custom checks	🟡 67	🟡 67	–
Security	🟢 100	🟢 100	–
Updates	🟡 78	🟡 78	–
Accessibility	🟢 91	🟢 91	–
Best Practices	🟢 100	🟢 100	–
SEO	🟡 61	🟡 61	–
Bug prevention	🟢 100	🟢 100	–
Code style	🟢 99	🟢 99	–

🗃️ Groups

👍 2 groups improved

| 🔌 Plugin | 🗃️ Group | ⭐ Previous score | ⭐ Current score | 🔄 Score change | | :--------------------------------------------------------------------------- | :-------------------- | :--------------: | :-------------: | :--------------------------------------------------------------: | | Lighthouse | Performance | 🔴 45 | 🟡 **52** |  | | [Code coverage](https://www.npmjs.com/package/@code-pushup/coverage-plugin/) | Code coverage metrics | 🟡 90 | 🟡 **90** |  | 18 other groups are unchanged.

🛡️ Audits

👍 5 audits improved, 👎 1 audit regressed, 14 audits changed without impacting score

| 🔌 Plugin | 🛡️ Audit | 📏 Previous value | 📏 Current value | 🔄 Value change | | :--------------------------------------------------------------------------- | :------------------------------------------- | :------------------------------: | :---------------------------------: | :---------------------------------------------------------------------------------: | | Lighthouse | First Contentful Paint | 🟥 3.2 s | 🟨 **2.5 s** |  | | Lighthouse | First Meaningful Paint | 🟨 3.4 s | 🟨 **2.5 s** |  | | Lighthouse | Largest Contentful Paint | 🟨 3.8 s | 🟨 **3.3 s** |  | | Lighthouse | Speed Index | 🟥 7.6 s | 🟥 **7.2 s** |  | | [Code coverage](https://www.npmjs.com/package/@code-pushup/coverage-plugin/) | Line coverage | 🟩 91.6 % | 🟩 **91.6 %** |  | | [Code coverage](https://www.npmjs.com/package/@code-pushup/coverage-plugin/) | Branch coverage | 🟨 84.3 % | 🟨 **84.3 %** |  | | Lighthouse | Avoids enormous network payloads | 🟩 Total size was 1,798 KiB | 🟩 **Total size was 1,790 KiB** |  | | Lighthouse | Eliminate render-blocking resources | 🟥 Potential savings of 1,580 ms | 🟥 **Potential savings of 580 ms** |  | | Lighthouse | Uses efficient cache policy on static assets | 🟨 27 resources found | 🟨 **27 resources found** |  | | Lighthouse | JavaScript execution time | 🟥 10.4 s | 🟥 **10.9 s** |  | | Lighthouse | Minimizes main-thread work | 🟥 23.3 s | 🟥 **22.8 s** |  | | Lighthouse | Total Blocking Time | 🟥 8,990 ms | 🟥 **8,550 ms** |  | | Lighthouse | Max Potential First Input Delay | 🟥 3,150 ms | 🟥 **3,320 ms** |  | | Lighthouse | Reduce unused CSS | 🟥 Potential savings of 105 KiB | 🟥 **Potential savings of 105 KiB** |  | | Lighthouse | Server Backend Latencies | 🟩 200 ms | 🟩 **70 ms** |  | | Lighthouse | Initial server response time was short | 🟩 Root document took 380 ms | 🟩 **Root document took 300 ms** |  | | Lighthouse | Time to Interactive | 🟥 16.7 s | 🟥 **16.8 s** |  | | Lighthouse | Metrics | 🟩 16696 | 🟩 **16764** |  | | Lighthouse | Network Round Trip Times | 🟩 60 ms | 🟩 **0 ms** |  | | Lighthouse | Cumulative Layout Shift | 🟩 0 | 🟩 **0** |  | 489 other audits are unchanged.

[BioPhoton]

@matejchalk I now added tests to check the file system.

The reason why I did not do that i previous PR's was because our generator also tried to install the packages and our e2e setup does not allow this ATM.

So now i added a flag to skip the installation of the packages. I also added tests for the file system now as it can avoid errors with --skipInstall and the info messages for the skip flags.

Have a look.