chore(github): add CODEOWNERS and dependabot

Signed-off-by: pochoclin <hey@popcorntime.app>

.github/CODEOWNERS

@@ -0,0 +1,4 @@
+# Order is important; the last matching pattern takes the most precedence.
+
+* @popcorntime/dev-wg
+.github @popcorntime/devops-wg

.github/dependabot.yaml

@@ -0,0 +1,29 @@
+version: 2
+
+updates:
+  - package-ecosystem: 'github-actions'
+    directory: '/'
+    schedule:
+      interval: 'weekly'
+
+  - package-ecosystem: 'npm'
+    directory: '/'
+    schedule:
+      interval: 'weekly'
+    ignore:
+      - dependency-name: '*'
+        update-types: ['version-update:semver-major']
+    groups:
+      npm-updates:
+        update-types: [minor, patch]
+
+  - package-ecosystem: 'cargo'
+    directory: '/'
+    schedule:
+      interval: 'weekly'
+    ignore:
+      - dependency-name: '*'
+        update-types: ['version-update:semver-major']
+    groups:
+      rust-updates:
+        update-types: [minor, patch]