Add automatic updating of github-actions

.github/dependabot.yml

diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 676ac1d..e24ee23 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -287,3 +287,11 @@
     schedule:
       interval: "daily"
     open-pull-requests-limit: 10
+    
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    commit-message:
+      prefix: "[github_actions]"
+    schedule:
+      interval: "daily"
+    open-pull-requests-limit: 10