Add: test for KairosDB accessibility in installation workflow

.github/workflows/installation-test.yml

@@ -41,6 +41,15 @@ jobs:
           # Wait for Grafana to be ready
           timeout 60s bash -c 'while [[ "$(curl -s -o /dev/null -w ''%{http_code}'' http://localhost:3000)" != "302" ]]; do sleep 5; done' || exit 1
 
+      - name: Test KairosDB accessibility
+        run: |
+          # Wait for KairosDB to be ready
+          timeout 60s bash -c 'while [[ "$(curl -s -o /dev/null -w ''%{http_code}'' http://localhost:8083/api/v1/health/check)" != "204" ]]; do 
+            echo "Waiting for KairosDB..."
+            sleep 5
+          done' || exit 1
+          echo "KairosDB is healthy"
+
       - name: Test MQTT broker
         run: |
           # Install mosquitto-clients for MQTT testing