fix(plugin-coverage): skip invalid line numbers from tools like pytest-cov

[matejchalk]

Encountered in customer repo with pytest-cov, which can emit invalid line number 0 under certain conditions.

[github-actions]

Code PushUp

🤨 Code PushUp report has both improvements and regressions – compared current commit e153d94 with previous commit ca85822.

🕵️ See full comparison in Code PushUp portal 🔍

🏷️ Categories

🏷️ Category	⭐ Previous score	⭐ Current score	🔄 Score change
Performance	🟡 52	🔴 30
Documentation	🔴 23	🔴 23
Code coverage	🟢 91	🟢 91
Security	🟡 61	🟡 61	–
Updates	🟡 77	🟡 77	–
Accessibility	🟢 92	🟢 92	–
Best Practices	🟢 100	🟢 100	–
SEO	🟡 61	🟡 61	–
Type Safety	🟢 100	🟢 100	–
Bug prevention	🟢 100	🟢 100	–
Miscellaneous	🟢 100	🟢 100	–
Code style	🟢 100	🟢 100	–

👍 2 groups improved, 👎 1 group regressed, 👍 4 audits improved, 👎 7 audits regressed, 10 audits changed without impacting score

🗃️ Groups

🔌 Plugin	🗃️ Group	⭐ Previous score	⭐ Current score	🔄 Score change
Lighthouse	Performance	🟡 52	🔴 30
JSDoc coverage	Documentation coverage	🔴 23	🔴 23
Code coverage	Code coverage metrics	🟢 91	🟢 91

18 other groups are unchanged.

🛡️ Audits

🔌 Plugin	🛡️ Audit	📏 Previous value	📏 Current value	🔄 Value change
Lighthouse	Reduce unused JavaScript	🟨 Potential savings of 159 KiB	🟥 Potential savings of 159 KiB
Lighthouse	Remove duplicate modules in JavaScript bundles	🟨 Potential savings of 83 KiB	🟥 Potential savings of 80 KiB
Lighthouse	Largest Contentful Paint	🟥 4.1 s	🟥 12.5 s
Lighthouse	First Contentful Paint	🟨 2.9 s	🟥 4.4 s
Lighthouse	Speed Index	🟨 5.1 s	🟥 7.3 s
Lighthouse	Total Blocking Time	🟥 1,640 ms	🟥 6,640 ms
Lighthouse	Time to Interactive	🟥 12.2 s	🟥 16.4 s
JSDoc coverage	Functions coverage	🟥 476 undocumented functions	🟥 476 undocumented functions
Code coverage	Line coverage	🟩 90.2 %	🟩 90.2 %
Code coverage	Branch coverage	🟨 86.3 %	🟨 86.3 %
Code coverage	Function coverage	🟩 93 %	🟩 93.1 %
Lighthouse	Minimizes main-thread work	🟥 10.9 s	🟥 21.1 s
Lighthouse	JavaScript execution time	🟥 4.9 s	🟥 9.2 s
Lighthouse	Metrics	🟩 100%	🟩 100%
Lighthouse	Avoids enormous network payloads	🟩 Total size was 1,875 KiB	🟩 Total size was 1,879 KiB
Lighthouse	Max Potential First Input Delay	🟥 1,330 ms	🟥 3,370 ms
Lighthouse	Uses efficient cache policy on static assets	🟨 30 resources found	🟨 30 resources found
Lighthouse	Reduce unused CSS	🟥 Potential savings of 68 KiB	🟥 Potential savings of 68 KiB
Lighthouse	Server Backend Latencies	🟩 110 ms	🟩 60 ms
Lighthouse	Initial server response time was short	🟩 Root document took 400 ms	🟩 Root document took 410 ms
Lighthouse	Network Round Trip Times	🟩 30 ms	🟩 40 ms

584 other audits are unchanged.