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/AbstractFunctionTestCase.java
import org.elasticsearch.core.PathUtils;
import org.elasticsearch.core.Releasables;
import org.elasticsearch.indices.CrankyCircuitBreakerService;
import org.elasticsearch.logging.LogManager;
import org.elasticsearch.test.ESTestCase;
import org.elasticsearch.xpack.esql.evaluator.EvalMapper;
import org.elasticsearch.xpack.esql.expression.function.scalar.conditional.Greatest;
import org.elasticsearch.xpack.esql.expression.function.scalar.nulls.Coalesce;
import org.elasticsearch.xpack.esql.optimizer.FoldNull;
import org.elasticsearch.xpack.esql.planner.Layout;
import org.elasticsearch.xpack.esql.planner.LocalExecutionPlanner;
import org.elasticsearch.xpack.esql.type.EsqlDataTypes;
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.TypeResolutions;
import org.elasticsearch.xpack.ql.expression.function.FunctionDefinition;
import org.elasticsearch.xpack.ql.tree.Source;
import org.elasticsearch.xpack.ql.type.DataType;
import org.elasticsearch.xpack.ql.type.DataTypes;
import org.elasticsearch.xpack.ql.type.EsField;
import org.elasticsearch.xpack.ql.util.StringUtils;
import org.elasticsearch.xpack.versionfield.Version;
import org.hamcrest.Matcher;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;