container_pull failed for images layers with MediaType "application/vnd.docker.image.rootfs.diff.tar"

# 🐞 bug report

### Affected Rule

The issue is caused by the rule:

* container_pull

### Is this a regression?

Yes, the previous version in which this bug was not present was: ....

Not sure, we have tested v0.24.0 and v0.25.0 and both failed

### Description

A clear and concise description of the problem...

we found that the rule `container_pull` seems to assume the `MediaType` of image layers is `gzip`, even when the actual `MediaType` is `application/vnd.docker.image.rootfs.diff.tar`

## 🔬 Minimal Reproduction

1. prepare an image with `MediaType` `application/vnd.docker.image.rootfs.diff.tar`
2. write the following configs in `WORKSPACE`

```
container_pull(
name = "image_source",
digest = "",
registry = "",
repository = "",
)
```

3. write the following configs in ``

```
container_image(
name = "build_image",
base = "@image_source//image",
architecture = "amd64",
visibility = ["//visibility:public"],
)
```

4. run `bazelisk build //:build_image`

## 🔥 Exception or Error

2023/08/11 18:56:25 Image pull was unsuccessful: unable to save remote image : unable to write image layers: unable to write image layer: unable to get the contents of layer 0: gzip: invalid header

## 🌍 Your Environment

**Operating System:**

  

No LSB modules are available.

Distributor ID: Ubuntu

Description:    Ubuntu 22.04.2 LTS

Release:        22.04

Codename:       jammy

  

**Output of `bazel version`:**

  

Bazelisk version: v1.11.0

Build label: 6.3.2

Build target: bazel-out/k8-opt/bin/src/main/java/com/google/devtools/build/lib/bazel/BazelServer_deploy.jar

Build time: Tue Aug 8 15:48:33 2023 (1691509713)

Build timestamp: 1691509713

Build timestamp as int: 1691509713

  

**Rules_docker version:**

  

v0.24.0 and v0.25.0

  

**Anything else relevant?**