chore: add CODEOWNERS and Dependabot config

Author: eikendev

.github/CODEOWNERS

@@ -0,0 +1 @@
+* @eikendev

.github/dependabot.yml

@@ -0,0 +1,41 @@
+version: 2
+updates:
+  - package-ecosystem: "cargo"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "saturday"
+      time: "09:00"
+    open-pull-requests-limit: 10
+    commit-message:
+      prefix: "deps(cargo)"
+    labels:
+      - "dependencies"
+    pull-request-branch-name:
+      separator: "-"
+    cooldown:
+      semver-major-days: 14
+      semver-minor-days: 7
+      semver-patch-days: 2
+    groups:
+      cargo-dependencies:
+        patterns:
+          - "*"
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "saturday"
+      time: "09:00"
+    open-pull-requests-limit: 10
+    commit-message:
+      prefix: "deps(actions)"
+    labels:
+      - "dependencies"
+    pull-request-branch-name:
+      separator: "-"
+    groups:
+      github-actions:
+        patterns:
+          - "*"