lower log level if self-signed SSL certificate enabled

NOTICE

@@ -101,7 +101,7 @@ The following software have components provided under the terms of this license:
 - Guava: Google Core Libraries for Java (from http://code.google.com/p/guava-libraries, https://github.com/google/guava, https://repo1.maven.org/maven2/com/google/guava/guava)
 - HTTP functionality for the Reactor Netty library (from https://github.com/reactor/reactor-netty)
 - HdrHistogram (from http://hdrhistogram.github.io/HdrHistogram/)
-- Hibernate Validator (from https://repo1.maven.org/maven2/org/hibernate/hibernate-validator, https://repo1.maven.org/maven2/org/hibernate/validator/hibernate-validator)
+- Hibernate Validator (from http://hibernate.org/validator, https://repo1.maven.org/maven2/org/hibernate/hibernate-validator, https://repo1.maven.org/maven2/org/hibernate/validator/hibernate-validator)
 - High Performance Primitive Collections (from https://github.com/carrotsearch/hppc)
 - J2ObjC Annotations (from https://github.com/google/j2objc/)
 - JBoss Logging 3 (from http://www.jboss.org)
@@ -504,7 +504,7 @@ The following software have components provided under the terms of this license:
 
 - Guava: Google Core Libraries for Java (from http://code.google.com/p/guava-libraries, https://github.com/google/guava, https://repo1.maven.org/maven2/com/google/guava/guava)
 - HdrHistogram (from http://hdrhistogram.github.io/HdrHistogram/)
-- Hibernate Validator (from https://repo1.maven.org/maven2/org/hibernate/hibernate-validator, https://repo1.maven.org/maven2/org/hibernate/validator/hibernate-validator)
+- Hibernate Validator (from http://hibernate.org/validator, https://repo1.maven.org/maven2/org/hibernate/hibernate-validator, https://repo1.maven.org/maven2/org/hibernate/validator/hibernate-validator)
 - LatencyUtils (from http://latencyutils.github.io/LatencyUtils/)
 - Netty/Common (from https://repo1.maven.org/maven2/io/netty/netty-common)
 - jersey-container-servlet (from https://repo1.maven.org/maven2/org/glassfish/jersey/containers/jersey-container-servlet)

search-core/src/main/java/org/opengroup/osdu/search/util/ElasticClientHandler.java

@@ -126,7 +126,7 @@ public class ElasticClientHandler {
                         + "'security.https.certificate.trust' = %s",
                 protocolScheme, securityHttpsCertificateTrust));
         if ("https".equals(protocolScheme) && securityHttpsCertificateTrust) {
-            log.warn("Elastic client connection uses TrustSelfSignedStrategy()");
+            log.debug("Elastic client connection uses TrustSelfSignedStrategy()");
             SSLContext sslContext = createSSLContext();
             builder.setHttpClientConfigCallback(httpClientBuilder ->
             {