Test config fix using docker bridge for tests

test/actions.github.com/helper.sh

@@ -111,10 +111,21 @@ function create_cluster() {
     minikube delete || true
 
     log "Creating minikube cluster"
-    minikube start --driver=docker --container-runtime=docker --wait=all
+    minikube start --driver=docker --container-runtime=docker --network=bridge --wait=all
 
     log "Verifying ns works"
-    if ! minikube ssh "nslookup github.com >/dev/null 2>&1"; then
+    local ns_retries=5
+    local ns_delay=3
+    local ns_ok=false
+    for (( i=1; i<=ns_retries; i++ )); do
+        if minikube ssh "nslookup github.com >/dev/null 2>&1"; then
+            ns_ok=true
+            break
+        fi
+        log "DNS check attempt ${i}/${ns_retries} failed, retrying in ${ns_delay}s..."
+        sleep "${ns_delay}"
+    done
+    if [[ "${ns_ok}" != "true" ]]; then
         log "Nameserver configuration failed"
         exit 1
     fi