0.15.0rc2

• BREAKING: remove redundant argument proc for job plugin APIs
• deps: bump up dev deps
• refactor: remove abstractproperty decorator from CLIPlugin class
• feat: add 5 more APIs for plugins to handle files from other platforms (e.g. the cloud)
• ci: add python3.12 to CI
• test: fork each test in test_job.py
• test: fork tests in test_pipen.py and test_proc.py
• docs: correct the documentation about dirsig

Full Changelog: 0.15.0rc1...0.15.0rc2