Fix dependabot.yaml is not a CI workflow

Signed-off-by: Émile Ré <emile@getprobo.com>

.github/workflows/dependabot.yaml

@@ -1,41 +0,0 @@
-version: 2
-updates:
-  # Go modules
-  - package-ecosystem: "gomod"
-    directory: "/"
-    schedule:
-      interval: "monthly"
-    open-pull-requests-limit: 10
-    groups:
-      go-dependencies:
-        patterns:
-          - "*"
-
-  # npm packages (root)
-  - package-ecosystem: "npm"
-    directory: "/"
-    schedule:
-      interval: "monthly"
-    open-pull-requests-limit: 10
-    groups:
-      npm-dependencies:
-        patterns:
-          - "*"
-
-  # Docker base images
-  - package-ecosystem: "docker"
-    directory: "/"
-    schedule:
-      interval: "monthly"
-    open-pull-requests-limit: 5
-
-  # GitHub Actions
-  - package-ecosystem: "github-actions"
-    directory: "/"
-    schedule:
-      interval: "monthly"
-    open-pull-requests-limit: 5
-    groups:
-      github-actions:
-        patterns:
-          - "*"