Relax ordering assertion when testing resource provider

Flyway's org.flywaydb.core.internal.scanner.Scanner does not make
any ordering guarantees so neither does our
NativeImageResourceProvider. It also isn't required by the contract
where a Collection is returned so we can relax the assertion in the
test so that it doesn't care about the ordering.

See gh-49661

Author: wilkinsona

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/flyway/NativeImageResourceProviderCustomizerTests.java

@@ -67,7 +67,7 @@ void nativeImageResourceProviderShouldFindNestedMigrations() {
 		Collection<LoadableResource> migrations = resourceProvider.getResources("V", new String[] { ".sql" });
 		LoadableResource v1 = resourceProvider.getResource("V1__init.sql");
 		LoadableResource v2 = resourceProvider.getResource("nested/V2__users.sql");
-		assertThat(migrations).containsExactly(v1, v2);
+		assertThat(migrations).containsExactlyInAnyOrder(v1, v2);
 	}
 
 	@Test