Clean-up the large git history of country-config / core

[naftis]

Even with a fast internet connection, cloning the country-config takes a long time. I've experienced this on multiple machines while on-boarding new developers

➜  Projects git clone https://github.com/opencrvs/opencrvs-countryconfig-mosip
Cloning into 'opencrvs-countryconfig-mosip'...
remote: Enumerating objects: 27211, done.
remote: Counting objects: 100% (2644/2644), done.
remote: Compressing objects: 100% (359/359), done.
error: RPC failed; curl 92 HTTP/2 stream 0 was not closed cleanly: CANCEL (err 8)
error: 6878 bytes of body are still expected
fetch-pack: unexpected disconnect while reading sideband packet
fatal: early EOF
fatal: fetch-pack: invalid index-pack output

I think it's due to some old backups being still in the Git history. Could we look into this and remove them? Is there an alternative way to clone the country-config faster? If there is, can we always suggest doing that or are there downsides?

This would benefit onboarding and training especially in locations with sub-optimal internet connection.

[naftis]

A workaround is to use the --depth flag

git clone https://github.com/opencrvs/opencrvs-countryconfig --depth 10

but not sure if that's a proper solution to close off this issue as the history can be useful while developing