Dependabot fixes for v2 (#1183)

* Specify push target

* include v3

.github/dependabot.yml

@@ -1,28 +1,37 @@
-# To get started with Dependabot version updates, you'll need to specify which
-# package ecosystems to update and where the package manifests are located.
-# Please see the documentation for all configuration options:
-# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
-
 version: 2
 updates:
-  - package-ecosystem: "gomod" # See documentation for possible values
-    directory: "/" # Location of package manifests
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    target-branch: "develop/v3"
+    labels:
+      - "go"
+      - "dependencies"
+      - "dependabot"
+  - package-ecosystem: "gomod"
+    directory: "/"
     schedule:
       interval: "daily"
     target-branch: "develop/v2"
     labels:
       - "go"
       - "dependencies"
       - "dependabot"
-  - package-ecosystem: "gomod" # See documentation for possible values
-    directory: "/" # Location of package manifests
+  - package-ecosystem: "gomod"
+    directory: "/"
     schedule:
       interval: "daily"
     target-branch: "develop/v1"
     labels:
       - "go"
       - "dependencies"
       - "dependabot"
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    target-branch: "develop/v3"
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:

.github/workflows/dependabot.yml

@@ -25,7 +25,7 @@ jobs:
           git config --local user.email '41898282+github-actions[bot]@users.noreply.github.com'
           git add .
           git commit -m "Run tidy / bazel+gazelle"
-          git push 
+          git push origin HEAD:GITHUB_HEAD_REF
           gh pr review --approve "$PR_URL"
           gh pr merge --auto --merge "$PR_URL"
         env: