build: ignore patch version updates for actions

The dependabot sends way to many updates. Ignore the patch version
updates.

Signed-off-by: Daniel Wagner <[email protected]>

Author: igaw

.github/dependabot.yml

@@ -7,3 +7,7 @@ updates:
     directory: "/"
     schedule:
       interval: "weekly"
+    ignore:
+      - dependency-name: "*"
+        update-types:
+          - "version-update:semver-patch"