Updated dependabot to only check for security updates

Author: abujeda

.github/dependabot.yml

@@ -1,4 +1,3 @@
-# .github/dependabot.yml
 version: 2
 updates:
   # Ruby gems using Bundler
@@ -7,6 +6,7 @@ updates:
     schedule:
       interval: weekly
     open-pull-requests-limit: 5
+    security-updates-only: true
     commit-message:
       prefix: deps
     labels:
@@ -19,6 +19,7 @@ updates:
     schedule:
       interval: weekly
     open-pull-requests-limit: 5
+    security-updates-only: true
     commit-message:
       prefix: deps
     labels: