Rename getAccount() to account() as in Gerrit master

Gerrit master AccountState class introduced incompatible change
by renaming getAccount() to account().

Bug: Issue 11657
Change-Id: I636eb1a3598b3676f64c4334930b67dba373b22d

src/main/java/com/googlesource/gerrit/plugins/healthcheck/check/AuthHealthCheck.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/healthcheck/check/AuthHealthCheck.java b/src/main/java/com/googlesource/gerrit/plugins/healthcheck/check/AuthHealthCheck.java
index 0dcb7a5..f00b155 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/healthcheck/check/AuthHealthCheck.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/healthcheck/check/AuthHealthCheck.java
@@ -61,7 +61,7 @@
       log.error("Cannot load account state for username " + username);
       return Result.FAILED;
     }
-    if (!accountState.get().getAccount().isActive()) {
+    if (!accountState.get().account().isActive()) {
       log.error("Authentication error, account " + username + " is inactive");
       return Result.FAILED;
     }