chore: add Dependabot (#329)

.github/dependabot.yaml

@@ -0,0 +1,38 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+      time: "10:00"
+      timezone: "Asia/Tokyo"
+    commit-message:
+      prefix: "build"
+      include: "scope"
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+      time: "10:00"
+      timezone: "Asia/Tokyo"
+    commit-message:
+      prefix: "build"
+      include: "scope"
+  - package-ecosystem: "npm"
+    directory: "/ui"
+    schedule:
+      interval: "monthly"
+      time: "10:00"
+      timezone: "Asia/Tokyo"
+    commit-message:
+      prefix: "build"
+      include: "scope"
+  - package-ecosystem: "pip"
+    directory: "/python"
+    schedule:
+      interval: "monthly"
+      time: "10:00"
+      timezone: "Asia/Tokyo"
+    commit-message:
+      prefix: "build"
+      include: "scope"

.github/workflows/cla.yaml

@@ -24,4 +24,4 @@ jobs:
           custom-allsigned-prcomment: "All Contributors have signed the CLA."
           lock-pullrequest-aftermerge: false
           branch: "main"
-          allowlist: github-actions,renovate[bot]
+          allowlist: github-actions,renovate[bot],dependabot[bot]