Error combining magic-zero with either npm or conventional-commits

**Describe the bug**

When adding the `magic-zero` plugin, and _either or both_ `npm` or `conventional-commits`, Auto fails with a traceback claiming the config file has not loaded.

**To Reproduce**

Set the following in your auto.config.js file (after installing the necessary plugins with npm):

```
plugins: [
"magic-zero",
"npm",
],
```

Or:

```
plugins: [
"conventional-commits",
"magic-zero",
],
```

Then run any Auto command, like `auto version` or `auto shipit --dry-run`

**Expected behavior**

I'd expect the magic-zero behavior (translating 'minor' to the third integer and 'major' to the second when the first is `0`) would be combined with either `npm` versions or the conventional-commit version bump calculations.

Instead, the follow error is printed:

```
$ auto version
Error: Auto is not initialized! Make sure the have run Auto.loadConfig
at Auto.createErrorMessage (/.../node_modules/@auto-it/core/src/auto.ts:2038:12)
at Auto.prefixRelease (/.../node_modules/@auto-it/core/src/auto.ts:2028:18)
at getPreviousVersion (/.../node_modules/@auto-it/npm/src/index.ts:296:16)
```

When `magic-zero` is removed, or all plugins other than `magic-zero` are removed, it runs successfully without a traceback.

**Environment information:**

```
"auto" version: v10.25.0
"git" version: v2.24.3 (Apple Git-128)
"node" version: v14.16.0
GHE version: v2.22.7
```

(Issue also occurred on Node 12.x and 10.x.)