Merge branch 'main' of github.com:git/git

Merge branch 'main' of github.com:git/git

* 'main' of github.com:git/git: (45 commits)
  A bit more of remaining topics before -rc1
  t1800: correct test to handle Cygwin
  chainlint: colorize problem annotations and test delimiters
  ls-files: fix black space in error message
  list-objects-filter: convert filter_spec to a strbuf
  list-objects-filter: add and use initializers
  list-objects-filter: handle null default filter spec
  list-objects-filter: don't memset after releasing filter struct
  builtin/mv.c: fix possible segfault in add_slash()
  Documentation/technical: include Scalar technical doc
  t/perf: add 'GIT_PERF_USE_SCALAR' run option
  t/perf: add Scalar performance tests
  scalar-clone: add test coverage
  scalar: add to 'git help -a' command list
  scalar: implement the `help` subcommand
  git help: special-case `scalar`
  scalar: include in standard Git build & installation
  scalar: fix command documentation section header
  t: retire unused chainlint.sed
  t/Makefile: teach `make test` and `make prove` to run chainlint.pl
  ...