Reduce Dependabot update frequency (#236)

Author: StanFromIreland

.github/dependabot.yml

@@ -3,17 +3,30 @@ updates:
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:
-      interval: "weekly"
+      interval: "quarterly"
     assignees:
       - "rffontenelle"
     commit-message:
       prefix: "gha"
+    ignore:
+      - dependency-name: "*"
+        update-types:
+          - "version-update:semver-minor"
+          - "version-update:semver-patch"
+    groups:
+      actions:
+        patterns:
+          - "*"
 
   - package-ecosystem: "pip"
     directory: "/"
     schedule:
-      interval: "weekly"
+      interval: "quarterly"
     assignees:
       - "rffontenelle"
     commit-message:
       prefix: "pip"
+    groups:
+      pip:
+        patterns:
+          - "*"