CXX-2683 Replace codecov-bash with new Codecov uploader (#958)

* CXX-2683 Replace old codecov-bash with new uploader

* Remove printing contents of MONGOC_PREFIX directory

* Remove VERBOSE output when running GNU Make

* Reduce verbosity of MSBuild output to minimal

* Remove standard output when building libmongocrypt and libmongoc

* Remove standard output when updating CA certificates

* Defer standard output to failure for examples

* Ensure replset member on port 27017 is primary