Fix invalid setting value in ShardBulkInferenceActionFilter tests (elastic#125006)

0 is not a valid value.

Closes elastic#124985
Closes elastic#124986
Closes elastic#124955
Closes elastic#124954

Author: jimczi

muted-tests.yml

@@ -360,12 +360,6 @@ tests:
 - class: org.elasticsearch.xpack.ilm.DataStreamAndIndexLifecycleMixingTests
   method: testIndexTemplateSwapsILMForDataStreamLifecycle
   issue: https://github.com/elastic/elasticsearch/issues/124886
-- class: org.elasticsearch.xpack.inference.action.filter.ShardBulkInferenceActionFilterTests
-  method: testExplicitNull {p0=false}
-  issue: https://github.com/elastic/elasticsearch/issues/124891
-- class: org.elasticsearch.xpack.inference.action.filter.ShardBulkInferenceActionFilterTests
-  method: testExplicitNull {p0=true}
-  issue: https://github.com/elastic/elasticsearch/issues/124892
 - class: org.elasticsearch.packaging.test.BootstrapCheckTests
   method: test20RunWithBootstrapChecks
   issue: https://github.com/elastic/elasticsearch/issues/124940

x-pack/plugin/inference/src/internalClusterTest/java/org/elasticsearch/xpack/inference/action/filter/ShardBulkInferenceActionFilterIT.java

@@ -87,7 +87,7 @@ public void setup() throws Exception {
 
     @Override
     protected Settings nodeSettings(int nodeOrdinal, Settings otherSettings) {
-        long batchSizeInBytes = randomLongBetween(0, ByteSizeValue.ofKb(1).getBytes());
+        long batchSizeInBytes = randomLongBetween(1, ByteSizeValue.ofKb(1).getBytes());
         return Settings.builder()
             .put(otherSettings)
             .put(LicenseSettings.SELF_GENERATED_LICENSE_TYPE.getKey(), "trial")

x-pack/plugin/inference/src/test/java/org/elasticsearch/xpack/inference/action/filter/ShardBulkInferenceActionFilterTests.java

@@ -567,7 +567,7 @@ private static ClusterService createClusterService(boolean useLegacyFormat) {
         ClusterState clusterState = ClusterState.builder(new ClusterName("test")).metadata(metadata).build();
         ClusterService clusterService = mock(ClusterService.class);
         when(clusterService.state()).thenReturn(clusterState);
-        long batchSizeInBytes = randomLongBetween(0, ByteSizeValue.ofKb(1).getBytes());
+        long batchSizeInBytes = randomLongBetween(1, ByteSizeValue.ofKb(1).getBytes());
         Settings settings = Settings.builder().put(INDICES_INFERENCE_BATCH_SIZE.getKey(), ByteSizeValue.ofBytes(batchSizeInBytes)).build();
         when(clusterService.getSettings()).thenReturn(settings);
         when(clusterService.getClusterSettings()).thenReturn(new ClusterSettings(settings, Set.of(INDICES_INFERENCE_BATCH_SIZE)));