[fix][misc] Log Conscrypt security provider initialization warnings a…

…t debug level (apache#23364)

(cherry picked from commit 950309b)
(cherry picked from commit 988b884)

pulsar-common/src/main/java/org/apache/pulsar/common/util/SecurityUtility.java

@@ -125,12 +125,12 @@ private static Provider loadConscryptProvider() {
             conscryptClazz.getMethod("checkAvailability").invoke(null);
         } catch (Throwable e) {
             if (e instanceof ClassNotFoundException) {
-                log.warn("Conscrypt isn't available in the classpath. Using JDK default security provider.");
+                log.debug("Conscrypt isn't available in the classpath. Using JDK default security provider.");
             } else if (e.getCause() instanceof UnsatisfiedLinkError) {
-                log.warn("Conscrypt isn't available for {} {}. Using JDK default security provider.",
+                log.debug("Conscrypt isn't available for {} {}. Using JDK default security provider.",
                         System.getProperty("os.name"), System.getProperty("os.arch"));
             } else {
-                log.warn("Conscrypt isn't available. Using JDK default security provider."
+                log.debug("Conscrypt isn't available. Using JDK default security provider."
                         + " Cause : {}, Reason : {}", e.getCause(), e.getMessage());
             }
             return null;
@@ -140,7 +140,7 @@ private static Provider loadConscryptProvider() {
         try {
             provider = (Provider) Class.forName(CONSCRYPT_PROVIDER_CLASS).getDeclaredConstructor().newInstance();
         } catch (ReflectiveOperationException e) {
-            log.warn("Unable to get security provider for class {}", CONSCRYPT_PROVIDER_CLASS, e);
+            log.debug("Unable to get security provider for class {}", CONSCRYPT_PROVIDER_CLASS, e);
             return null;
         }