🩹 [Patch]: Update Dependabot configuration to include labels for GitHub Actions (#17)

## Description

This pull request updates the Dependabot configuration to automatically
add labels to pull requests related to GitHub Actions dependencies.

Dependabot configuration improvements:

*
[`.github/dependabot.yml`](diffhunk://#diff-dd4fbda47e51f1e35defb9275a9cd9c212ecde0b870cba89ddaaae65c5f3cd28R10-R12):
Added `dependencies` and `github-actions` labels to GitHub Actions
dependency update pull requests.

Author: MariusStorhaug

.github/dependabot.yml

@@ -7,5 +7,8 @@ version: 2
 updates:
   - package-ecosystem: github-actions # See documentation for possible values
     directory: / # Location of package manifests
+    labels:
+      - dependencies
+      - github-actions
     schedule:
       interval: weekly