rm .yaml add .yml (#579)

Author: NakoGH

.github/dependabot.yaml renamed to .github/dependabot.yml

@@ -1,16 +1,16 @@
-# Dependabot version updates
-# https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/about-dependabot-version-updates
-
-version: 2
-updates:
-  # Maintain dependencies for GitHub Actions
-  - package-ecosystem: "github-actions"
-    directory: "/"
-    schedule:
-      interval: "monthly"
-
-  # Maintain Python dependencies
-  - package-ecosystem: "pub"
-    directory: "/"
-    schedule:
-      interval: "monthly"
+# Dependabot version updates
+# https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/about-dependabot-version-updates
+
+version: 2
+updates:
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+
+  # Maintain Python dependencies
+  - package-ecosystem: "pub"
+    directory: "/"
+    schedule:
+      interval: "monthly"