fix: explicitly exit process with successful code to not leave cli hanging

[vmasek]

CLI hangs in certain situations, we do open many sub processes and some of them maybe don't exit properly.
For immediate fix we need to explicitly exist with successful code.

closes #468

[github-actions]

Code PushUp

🤨 Code PushUp report has both improvements and regressions – compared target commit c2e5eaf with source commit 6c0097f.

🕵️ See full comparison in Code PushUp portal 🔍

🏷️ Categories

🏷️ Category	⭐ Previous score	⭐ Current score	🔄 Score change
Performance	🟡 52	🔴 49
Code coverage	🟢 91	🟢 91
Security	🟡 79	🟡 79	–
Updates	🟡 77	🟡 77	–
Accessibility	🟢 92	🟢 92	–
Best Practices	🟢 100	🟢 100	–
SEO	🟡 61	🟡 61	–
Bug prevention	🟢 100	🟢 100	–
Code style	🟢 100	🟢 100	–
Documentation	🔴 23	🔴 23	–

👎 2 groups regressed, 👍 1 audit improved, 👎 5 audits regressed, 11 audits changed without impacting score

🗃️ Groups

🔌 Plugin	🗃️ Group	⭐ Previous score	⭐ Current score	🔄 Score change
Lighthouse	Performance	🟡 52	🔴 49
Code coverage	Code coverage metrics	🟢 91	🟢 91

16 other groups are unchanged.

🛡️ Audits

🔌 Plugin	🛡️ Audit	📏 Previous value	📏 Current value	🔄 Value change
Lighthouse	Speed Index	🟨 4.9 s	🟥 6.8 s
Lighthouse	Largest Contentful Paint	🟨 3.7 s	🟨 3.6 s
Lighthouse	Total Blocking Time	🟥 3,010 ms	🟥 5,180 ms
Lighthouse	Time to Interactive	🟥 13.5 s	🟥 14.2 s
Lighthouse	First Contentful Paint	🟨 2.8 s	🟨 2.8 s
Code coverage	Line coverage	🟨 89.7 %	🟨 89.7 %
Lighthouse	Minimizes main-thread work	🟥 12.5 s	🟥 17.1 s
Lighthouse	Avoids enormous network payloads	🟩 Total size was 1,820 KiB	🟩 Total size was 1,825 KiB
Lighthouse	JavaScript execution time	🟥 6.2 s	🟥 7.2 s
Lighthouse	Metrics	🟩 100%	🟩 100%
Lighthouse	Eliminate render-blocking resources	🟥 Potential savings of 1,070 ms	🟥 Potential savings of 590 ms
Lighthouse	Max Potential First Input Delay	🟥 1,910 ms	🟥 2,220 ms
Lighthouse	Initial server response time was short	🟩 Root document took 400 ms	🟩 Root document took 560 ms
Lighthouse	Reduce unused CSS	🟥 Potential savings of 67 KiB	🟥 Potential savings of 67 KiB
Lighthouse	Uses efficient cache policy on static assets	🟨 27 resources found	🟨 27 resources found
Lighthouse	Server Backend Latencies	🟩 120 ms	🟩 210 ms
Lighthouse	Network Round Trip Times	🟩 30 ms	🟩 40 ms

579 other audits are unchanged.

[vmasek]

@matejchalk I'd merge this one and have a look on the E2E separately, it looks like some output expects version in the snapshot

[matejchalk]

I'd merge this one and have a look on the E2E separately, it looks like some output expects version in the snapshot

Yes, it looks like that test is flaky. It shouldn't rely in our current version.