cache:when and bug fixes

• Support for cache:when #718
• Fix bug when artifacts/cache paths started with / #675
• Fix bug in needs: [{job: <name>}] syntax handling #743
• Fix bug in subprocess output newline splitting #742
• Tolerate needs.pipeline #732
• Fix regexp to extract project information #728
• Fix README.md installation section for "ubuntu 22'like" systems #735 #723

Thanks to @fabianpedd @lflobo @kouk @broneq @FnuGk @trygve55 @sh0shin @detly for contributing 😃