Changelog

• d9ed936 builtins: fix flaky uptime pretty-print test (#723)
• 0e5f6c0 builtins: improve GNU mv parity (#726)
• 422313f builtins: recover GNU cp compatibility (#728)
• aa05cb6 ci: fix custom-gcl cache miss and workspace module caching (#722)
• 7db744a fs: fix FIFO read deadlock when reader opens before writer (#730)
• de1b485 prepare release v0.0.30 (#729)
• 70741f9 split: close GNU compat gaps (#727)
• 2087b3d touch: fix GNU compat regressions (#725)
• 7cf4d9d uniq: fix GNU compat edge cases (#724)