Fix line length violation in cache tests

This commit fixes a line-length violation in the cache tests that was
hidden by the IDE folding the generics.

Author: jasontedor

server/src/test/java/org/elasticsearch/common/cache/CacheTests.java

@@ -347,7 +347,8 @@ protected long now() {
     @AwaitsFix(bugUrl = "https://github.com/elastic/elasticsearch/issues/30428")
     public void testComputeIfAbsentDeadlock() throws BrokenBarrierException, InterruptedException {
         final int numberOfThreads = randomIntBetween(2, 32);
-        final Cache<Integer, String> cache = CacheBuilder.<Integer, String>builder().setExpireAfterAccess(TimeValue.timeValueNanos(1)).build();
+        final Cache<Integer, String> cache =
+                CacheBuilder.<Integer, String>builder().setExpireAfterAccess(TimeValue.timeValueNanos(1)).build();
 
         final CyclicBarrier barrier = new CyclicBarrier(1 + numberOfThreads);
         for (int i = 0; i < numberOfThreads; i++) {