Just got a bunch of instances of this suite timing out all on Windows agents. Could be a coincidence but seems unlikely.

**Build scan:**
https://gradle-enterprise.elastic.co/s/rvfpi7upehqjk/tests/:x-pack:plugin:esql:test/org.elasticsearch.xpack.esql.expression.function.scalar.nulls.CoalesceTests
**Reproduction line:**
```
null
```

**Applicable branches:**
main

**Reproduces locally?:**
Didn't try

**Failure history:**
https://gradle-enterprise.elastic.co/scans/tests?tests.container=org.elasticsearch.xpack.esql.expression.function.scalar.nulls.CoalesceTests&tests.test=classMethod
**Failure excerpt:**
```
java.lang.Exception: Suite timeout exceeded (>= 2400000 msec).

  at __randomizedtesting.SeedInfo.seed([546AEE28130887AC]:0)

```
x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/expression/function/scalar/nulls/CoalesceTests.java
* or more contributor license agreements. Licensed under the Elastic License
 * 2.0; you may not use this file except in compliance with the Elastic License
 * 2.0.
 */
package org.elasticsearch.xpack.esql.expression.function.scalar.nulls;
import com.carrotsearch.randomizedtesting.annotations.Name;
import com.carrotsearch.randomizedtesting.annotations.ParametersFactory;
import org.elasticsearch.compute.data.Block;
import org.elasticsearch.compute.data.Page;
import org.elasticsearch.compute.operator.EvalOperator;
import org.elasticsearch.xpack.esql.evaluator.EvalMapper;
import org.elasticsearch.xpack.esql.expression.function.AbstractFunctionTestCase;
import org.elasticsearch.xpack.esql.expression.function.TestCaseSupplier;
import org.elasticsearch.xpack.esql.expression.function.scalar.VaragsTestCaseBuilder;
import org.elasticsearch.xpack.esql.planner.Layout;
import org.elasticsearch.xpack.ql.expression.Expression;
import org.elasticsearch.xpack.ql.expression.FieldAttribute;
import org.elasticsearch.xpack.ql.expression.Literal;
import org.elasticsearch.xpack.ql.expression.Nullability;
import org.elasticsearch.xpack.ql.tree.Source;
import org.elasticsearch.xpack.ql.type.EsField;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutionException;
import java.util.function.Function;
import java.util.function.Supplier;
import static org.elasticsearch.compute.data.BlockUtils.toJavaObject;
import static org.hamcrest.Matchers.equalTo;
public class CoalesceTests extends AbstractFunctionTestCase {