Fix CI: Update OpenSearch health check in all workflows

- Use simpler health check (curl root endpoint instead of _cluster/health)
- Increase timeout from 5s to 10s
- Increase retries from 5 to 20
- Increase interval from 10s to 15s
- Gives OpenSearch up to ~310 seconds to become healthy

The _cluster/health endpoint may return non-200 status during startup
even when OpenSearch is responding. Using root endpoint is more reliable.

Author: diraol

.github/workflows/build_container_image.yaml

@@ -182,10 +182,10 @@ jobs:
           discovery.type: single-node
           plugins.security.ssl.http.enabled: false
         options: >-
-          --health-cmd "curl -f http://localhost:9200/_cluster/health"
-          --health-interval 10s
-          --health-timeout 5s
-          --health-retries 5
+          --health-cmd "curl -s http://localhost:9200 >/dev/null || exit 1"
+          --health-interval 15s
+          --health-timeout 10s
+          --health-retries 20
         ports:
           - 9200:9200
 

.github/workflows/lint_and_unit.yaml

@@ -68,10 +68,10 @@ jobs:
           plugins.security.disabled: true
           OPENSEARCH_INITIAL_ADMIN_PASSWORD: admin
         options: >-
-          --health-cmd "curl -f http://localhost:9200/_cluster/health || exit 1"
-          --health-interval 10s
+          --health-cmd "curl -s http://localhost:9200 >/dev/null || exit 1"
+          --health-interval 15s
           --health-timeout 10s
-          --health-retries 10
+          --health-retries 20
         ports:
           - 9200:9200
 

.github/workflows/test_pull_request.yml

@@ -43,10 +43,10 @@ jobs:
           plugins.security.disabled: true
           OPENSEARCH_INITIAL_ADMIN_PASSWORD: admin
         options: >-
-          --health-cmd "curl -f http://localhost:9200/_cluster/health"
-          --health-interval 10s
-          --health-timeout 5s
-          --health-retries 5
+          --health-cmd "curl -s http://localhost:9200 >/dev/null || exit 1"
+          --health-interval 15s
+          --health-timeout 10s
+          --health-retries 20
         ports:
           - 9200:9200