Experimental windows ambient rebase master branch

.devcontainer/devcontainer.json

@@ -1,6 +1,6 @@
 {
   "name": "istio build-tools",
-  "image": "gcr.io/istio-testing/build-tools:master-e55cb3f9967290bfb749f97c35db81bcdb04451d",
+  "image": "registry.istio.io/testing/build-tools:master-b7201a4e3411e85dff202449182d26efd7491b89",
   "privileged": true,
   "remoteEnv": {
     "USE_GKE_GCLOUD_AUTH_PLUGIN": "True",

.github/dependabot.yml

@@ -1,15 +1,45 @@
-
 version: 2
 updates:
-  # Maintain dependencies for GitHub Actions
   - package-ecosystem: "cargo"
-    # Workflow files stored in the default location of `.github/workflows`. (You don't need to specify `/.github/workflows` for `directory`. You can use `directory: "/"`.)
     directory: "/"
     schedule:
       interval: "weekly"
     rebase-strategy: "disabled"
+    target-branch: "master"
+    groups:
+      all-dependencies:
+        patterns:
+          - "*"
+
+  - package-ecosystem: "cargo"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    rebase-strategy: "disabled"
+    target-branch: "release-1.29"
+    groups:
+      all-dependencies:
+        patterns:
+          - "*"
+
+  - package-ecosystem: "cargo"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    rebase-strategy: "disabled"
+    target-branch: "release-1.28"
+    groups:
+      all-dependencies:
+        patterns:
+          - "*"
+
+  - package-ecosystem: "cargo"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    rebase-strategy: "disabled"
+    target-branch: "release-1.27"
     groups:
-      all:
-        applies-to: version-updates
-          patterns:
-          - "*"
+      all-dependencies:
+        patterns:
+          - "*"