chore: add wait for default organization to setup

acceptance/docker-compose.yaml

@@ -1,7 +1,7 @@
 services:
   zitadel:
     user: "${ZITADEL_DEV_UID}"
-    image: "${ZITADEL_IMAGE:-ghcr.io/zitadel/zitadel:v2.65.0}"
+    image: "${ZITADEL_IMAGE:-ghcr.io/zitadel/zitadel:latest}"
     command: 'start-from-init --masterkey "MasterkeyNeedsToHave32Characters" --tlsMode disabled --config /zitadel.yaml --steps /zitadel.yaml'
     ports:
       - "8080:8080"

acceptance/setup.sh

@@ -43,6 +43,7 @@ do
       --url "${ZITADEL_API_INTERNAL_URL}/v2/organizations/_search" \
       --header "Authorization: Bearer ${PAT}" \
       --header "Host: ${ZITADEL_API_DOMAIN}" \
+      --header "Content-Type: application/json" \
       -d "{\"queries\": [{\"defaultQuery\":{}}]}" )
   echo "Received default organization response: ${DEFAULTORG_RESPONSE}"
   DEFAULTORG_RESPONSE_RESULTS=$(echo $DEFAULTORG_RESPONSE | jq -r '.result | length')