test(ci): stop failing fast

[rrama]

Description

Keep running all tests even if one OS fails.

Checklist

• [x] Read and understood the Code of Conduct and Contributing Guidelines.
• [ ] Tests added and all succeed
• N/A
• [ ] Linted
• N/A
• [ ] CHANGELOG.md updated
• N/A
• [ ] README.md updated, if user-facing
• N/A

Screenshots / GIFs

N/A

[snyk-io[bot]]

:white_check_mark: Snyk checks have passed. No issues have been found so far.

Status	Scanner	Critical	High	Medium	Low	Total (0)
:white_check_mark:	Code Security	0	0	0	0	0 issues

:computer: Catch issues earlier using the plugins for VS Code, JetBrains IDEs, Visual Studio, and Eclipse.