fix(deps): set default DEPS_UPSTREAM_BRANCH to release-4.20 for oadp-1.6

The dependency tests and update script were checking against the main
branch of hypershift, but oadp-1.6 should track release-4.20 instead.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Signed-off-by: Juan Manuel Parrilla Madrid <jparrill@redhat.com>

Author: jparrill

Makefile

@@ -21,7 +21,7 @@ VERSION ?= $(shell git describe --tags --always)
 ARCHS ?= amd64 arm64
 DOCKER_BUILD_ARGS ?= --platform=linux/$(ARCH)
 GO=GO111MODULE=on GOWORK=off GOFLAGS=-mod=vendor go
-DEPS_UPSTREAM_BRANCH ?= main
+DEPS_UPSTREAM_BRANCH ?= release-4.20
 
 .PHONY: install-goreleaser
 install-goreleaser:

scripts/update-dependencies.go

@@ -20,10 +20,10 @@ var watchedDependencies = map[string]string{
 }
 
 func main() {
-	// Read the target upstream branch from environment variable, defaulting to "main"
+	// Read the target upstream branch from environment variable, defaulting to "release-4.20"
 	targetBranch := os.Getenv("DEPS_UPSTREAM_BRANCH")
 	if targetBranch == "" {
-		targetBranch = "main"
+		targetBranch = "release-4.20"
 	}
 
 	fmt.Printf("🔄 Updating watched dependencies to latest %s branch versions...\n", targetBranch)

tests/integration/dependencies/dependencies_test.go

@@ -21,18 +21,18 @@ var watchedDependencies = []string{
 }
 
 // getTargetBranch returns the upstream branch to check dependencies against.
-// It reads the DEPS_UPSTREAM_BRANCH environment variable, defaulting to "main".
+// It reads the DEPS_UPSTREAM_BRANCH environment variable, defaulting to "release-4.20".
 func getTargetBranch() string {
 	branch := os.Getenv("DEPS_UPSTREAM_BRANCH")
 	if branch == "" {
-		branch = "main"
+		branch = "release-4.20"
 	}
 	return branch
 }
 
 // TestWatchedDependenciesAreUpToDate validates that all watched dependencies
 // are up-to-date with the latest versions available from the target upstream branch.
-// The target branch is controlled by the DEPS_UPSTREAM_BRANCH environment variable (default: "main").
+// The target branch is controlled by the DEPS_UPSTREAM_BRANCH environment variable (default: "release-4.20").
 // This helps prevent scheme-related issues and compatibility problems.
 func TestWatchedDependenciesAreUpToDate(t *testing.T) {
 	targetBranch := getTargetBranch()