Make SKIP_TLS_VERIFY apply to git data migrations too through adding the `-c http.sslVerify=false` option to the git clone command.
Fix #18998
Signed-off-by: Andrew Thornton <art27@cantab.net>
This PR continues the work in #17125 by progressively ensuring that git
commands run within the request context.
This now means that the if there is a git repo already open in the context it will be used instead of reopening it.
Signed-off-by: Andrew Thornton <art27@cantab.net>
