Automatic merge from submit-queue (batch tested with PRs 65032, 63471, 64104, 64672, 64427). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
pkg: kubelet: remote: increase grpc client default size to 16MiB
**What this PR does / why we need it**:
Increase the gRPC max message size to 16MB in the remote container runtime. I've seen sizes over 8MB in clusters with big (256GB RAM) nodes.
**Release note**:
```release-note
Increase the gRPC max message size to 16MB in the remote container runtime.
```