fix: upgrade error-prone to 2.49.0 and fix new compilation warnings

- Update `error-prone.version` to 2.49.0 in pom.xml.
- Fix `AssertThrowsMinimizer` warning in `CircularFifoQueueTest.java` by extracting iterator creation outside `assertThrows`.
- Fix `AssertThrowsBlockToExpression` warning in `ManagedProcessTest.java` by converting block lambda to expression lambda in `assertThrows`.

Co-authored-by: vorburger <298598+vorburger@users.noreply.github.com>

Author: google-labs-jules[bot]

pom.xml

@@ -48,7 +48,7 @@
 
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <error-prone.version>2.48.0</error-prone.version>
+    <error-prone.version>2.49.0</error-prone.version>
   </properties>
 
   <build>

src/test/java/ch/vorburger/exec/CircularFifoQueueTest.java

@@ -215,7 +215,8 @@ public void unsupportedOperations() {
     @Test
     public void emptyIteratorNext() {
         CircularFifoQueue<String> queue = new CircularFifoQueue<>(3);
-        assertThrows(NoSuchElementException.class, () -> queue.iterator().next());
+        Iterator<String> iterator = queue.iterator();
+        assertThrows(NoSuchElementException.class, () -> iterator.next());
     }
 
     @Test

src/test/java/ch/vorburger/exec/ManagedProcessTest.java

@@ -55,9 +55,7 @@ public void onProcessFailedInvokedOnCustomListenerTraditional() throws Exception
         SomeSelfTerminatingExec exec = someSelfTerminatingFailingExec(listener, false);
         assertThrows(
                 ManagedProcessException.class,
-                () -> {
-                    exec.proc.startAndWaitForConsoleMessageMaxMs(exec.msgToWaitFor, 1000);
-                });
+                () -> exec.proc.startAndWaitForConsoleMessageMaxMs(exec.msgToWaitFor, 1000));
         assertEquals(Integer.MIN_VALUE, listener.expectedExitValue);
         assertNotEquals(Integer.MIN_VALUE, listener.failureExitValue);
         assertNotNull(listener.t);