bitmapset: optimizations - #41

ℹ️ Scheduling was delayed due to a concurrency limit on community tasks

✅ 00:12 clone
✅ 00:01 sysinfo
✅ 00:15 ccache
✅ 00:01 setup_additional_packages
✅ 00:01 setup
✅ 00:29 gcc_warning
✅ 00:14 gcc_a_warning
✅ 00:42 clang_warning
✅ 00:17 clang_a_warning
✅ 00:32 mingw_cross_warning
✅ 00:40 docs_build
✅ 01:02 headers_headerscheck
✅ 00:53 headers_cpluspluscheck
✅ 00:15 Upload 'ccache' cache