Label Configuration Ignored

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Package ecosystem

nuget

### Package manager version

_No response_

### Language version

_No response_

### Manifest location and content before the Dependabot update

_No response_

### dependabot.yml content

```yml
# To get started with Dependabot version updates, you'll need to specify which
# package ecosystems to update and where the package manifests are located.
# Please see the documentation for all configuration options:
# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates

version: 2
updates:
- package-ecosystem: "nuget" # See documentation for possible values
directory: "/" # Location of package manifests
labels:
- "enhancement"
schedule:
interval: "daily"
ignore:
- dependency-name: "Syncfusion*"

- package-ecosystem: "github-actions" # See documentation for possible values
directory: "/" # Location of package manifests
labels:
- "enhancement"
schedule:
interval: "daily"

- package-ecosystem: "gitsubmodule" # See documentation for possible values
directory: "/" # Location of package manifests
labels:
- "enhancement"
- "submodule"
schedule:
interval: "daily"
```

### Updated dependency

Azure.Identity from 1.3.0 to 1.10.2

### What you expected to see, versus what you actually saw

Expected the "enhancement" label to be added as per the configuration but instead it added one random label ("version-dependency") that is used for something else entirely in our workflow and created a new ".NET" label which I keep having to delete.

### Native package manager behavior

_No response_

### Images of the diff or a link to the PR, issue, or logs


### Smallest manifest that reproduces the issue

_No response_