Automatic merge from submit-queue (batch tested with PRs 59298, 59773, 59772). 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>.

bazel: update digests for debian-iptables-amd64 and busybox

**What this PR does / why we need it**: I've pushed updated (rebased) versions of the `debian-base-ARCH:0.3` and `debian-iptables-ARCH:v10` images. Since bazel uses the sha256 digest instead of the tag, we need to update those accordingly.

I also bumped the busybox digest, which hasn't been updated since last summer. This is updating it from v1.26.2 to v1.28.0. Note that the non-bazel build process uses `busybox:latest`, and so has already been using busybox v1.28.0.

**Special notes for your reviewer**:
We will update the hyperkube-base image in #57648.

**Release note**:

```release-note
NONE
```

/assign @tallclair 
/cc @rphillips @rvkubiak