[MINOR] - Add plugin version summary (#6221)

* Add plugin version to summary on startup

Signed-off-by: Gabriel-Trintinalia <gabriel.trintinalia@consensys.net>

* Remove test code

Signed-off-by: Gabriel-Trintinalia <gabriel.trintinalia@consensys.net>

---------

Signed-off-by: Gabriel-Trintinalia <gabriel.trintinalia@consensys.net>

besu/src/main/java/org/hyperledger/besu/services/BesuPluginContextImpl.java

@@ -124,8 +124,9 @@ public void registerPlugins(final Path pluginsDir) {
       try {
         plugin.register(this);
         LOG.info("Registered plugin of type {}.", plugin.getClass().getName());
-        lines.add(String.format(plugin.getClass().getSimpleName()));
-        addPluginVersion(plugin);
+        String pluginVersion = getPluginVersion(plugin);
+        pluginVersions.add(pluginVersion);
+        lines.add(String.format("%s (%s)", plugin.getClass().getSimpleName(), pluginVersion));
       } catch (final Exception e) {
         LOG.error(
             "Error registering plugin of type "
@@ -156,7 +157,7 @@ public List<String> getPluginsSummaryLog() {
     return lines;
   }
 
-  private void addPluginVersion(final BesuPlugin plugin) {
+  private String getPluginVersion(final BesuPlugin plugin) {
     final Package pluginPackage = plugin.getClass().getPackage();
     final String implTitle =
         Optional.ofNullable(pluginPackage.getImplementationTitle())
@@ -166,8 +167,7 @@ private void addPluginVersion(final BesuPlugin plugin) {
         Optional.ofNullable(pluginPackage.getImplementationVersion())
             .filter(Predicate.not(String::isBlank))
             .orElse("<Unknown Version>");
-    final String pluginVersion = implTitle + "/v" + implVersion;
-    pluginVersions.add(pluginVersion);
+    return implTitle + "/v" + implVersion;
   }
 
   /** Before external services. */