github: enable dependabot for Rust/cargo

diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644 (file)
index 0000000..a8a5524
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,8 @@
+version: 2
+updates:
+  - package-ecosystem: "cargo"
+    directory: "/rust"
+    schedule:
+      interval: "daily"
+    commit-message:
+      prefix: "rust:"