ci: upload binaries in package mantainer mode

ci: upload binaries in package mantainer mode

Upgrade codeql to v2 scripts

Correct codeql version

Update build system, use CPM (lefticus#13)

* Update build system, use CPM
* Based on most recent changes to cmake_template

Merge pull request lefticus#9 from lefticus/fix_build_errors

Work on various CI build errors

Merge branch 'main' of github.com:lefticus/json_compiler

Add some comments

Rename from constexpr_json to json2cpp, cache size()

Make custom variant to speed up compilation