Update dependabot.yml to ignore certain updates on main

Add ignore rules for major and minor version updates in Dependabot configuration on main

Signed-off-by: Ryan Baxter <rbaxter85@gmail.com>

Author: ryanjbaxter

.github/dependabot.yml

@@ -42,6 +42,12 @@ updates:
     schedule:
       interval: daily
     target-branch: main
+    ignore:
+      # only upgrade patch versions for maintenance branch
+      - dependency-name: "*"
+        update-types:
+          - version-update:semver-major
+          - version-update:semver-minor
   - package-ecosystem: npm
     target-branch: docs-build
     directory: /