Enable MutableGuiceModule errorprone pattern and fix/suppress issues

See https://errorprone.info/bugpattern/MutableGuiceModule

Change-Id: I6aef65b6a8e27c75302da6d6ee6ff29192e0b4b5
diff --git a/src/main/java/com/googlesource/gerrit/plugins/serviceuser/SshModule.java b/src/main/java/com/googlesource/gerrit/plugins/serviceuser/SshModule.java
index 40a1509..85b1e88 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/serviceuser/SshModule.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/serviceuser/SshModule.java
@@ -14,9 +14,15 @@
 
 package com.googlesource.gerrit.plugins.serviceuser;
 
+import com.google.gerrit.extensions.annotations.PluginName;
 import com.google.gerrit.sshd.PluginCommandModule;
+import com.google.inject.Inject;
 
 class SshModule extends PluginCommandModule {
+  @Inject
+  SshModule(@PluginName String pluginName) {
+    super(pluginName);
+  }
 
   @Override
   protected void configureCommands() {