Add Dependabot, Update Dependencies and Workflows (#1440)

Build may fail because of some major dependency updates. Needs changes,
changes/fixes welcomed.

Main goal is keeping all things up-to-date.

---------

Co-authored-by: weishu <twsxtd@gmail.com>

.github/dependabot.yml

@@ -0,0 +1,21 @@
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: daily
+
+  - package-ecosystem: cargo
+    directory: userspace/ksud
+    schedule:
+      interval: daily
+
+  - package-ecosystem: gradle
+    directory: manager
+    schedule:
+      interval: daily
+
+  - package-ecosystem: npm
+    directory: website
+    schedule:
+      interval: daily