Merge pull request github#21499 from github/redsun82/dependabot-exclude-bazel-registry

Dependabot: ignore modules in our bazel registry

Author: redsun82

.github/dependabot.yml

@@ -45,3 +45,5 @@ updates:
     directory: "/"
     schedule:
       interval: weekly
+    exclude-paths:
+      - "misc/bazel/registry/**"