Use of MUSL was a temporary solution to mitigate cross-platform
issues while building openssl and libssh2. Since Unmanaged transport has
been deprecated, openssl and libssh2 dependencies are no longer required
and by extension MUSL.
Enables libgit2 threadless support and provides a regression assurance
for fluxcd/image-automation-controller#339.
Signed-off-by: Paulo Gomes <paulo.gomes@weave.works>
Upgrade to golang-with-libgit2 v0.1.4 and use libgit2 which is compiled
without being linked to libssh2 and openssl.
Signed-off-by: Sanskar Jaiswal <jaiswalsanskar078@gmail.com>