Remove deprecated containerd.WithSchema1Conversion from host-ctr

WithSchema1Conversion is used to convert Docker registry schema 1 manifests to oci manifests on pull. Without this option schema 1 manifests will return a not supported error. This is no deprecated and it is recommended to use schema 2 or OCI images.

**Platform I'm building on:**

N/A

**What I expected to happen:**

`host-ctr` to pass lints

**What actually happened:**

```bash
cmd/host-ctr/main.go:1053:4: SA1019: containerd.WithSchema1Conversion is deprecated: use Schema 2 or OCI images. (staticcheck)
containerd.WithSchema1Conversion,
```

**How to reproduce the problem:**

Remove the exception added to [host-ctr/main.go](https://github.com/bottlerocket-os/bottlerocket-core-kit/blob/develop/sources/host-ctr/cmd/host-ctr/main.go) and run `golangci-lint`.