Downgrade MinGW in Windows setup scripts.
Downgrade MinGW in Windows setup scripts.

After the switch to MinGW 11.2.0 in #6888, the containerd client
integration tests were crashing with an apparent  memory allocation
error as described in golang/go#46099.

This patch reverts MinGW to 10.3.0 to bypass the issue.

Signed-off-by: Nashwan Azhari <48487387f29098f18922ad0a13cb5703600dc0b4@cloudbasesolutions.com>

estesp/containerd,containerd/containerd,containerd/containerd,thaJeztah/containerd,thaJeztah/containerd,estesp/containerd,mikebrow/containerd,mikebrow/containerd