Trying to hit the [execute API](https://www.elastic.co/guide/en/elasticsearch/painless/8.5/painless-execute-api.html) with an index that in available via cross cluster search will fail with an `IllegalArgumentException`: `Cross-cluster calls are not supported in this context but remote indices were requested`

That is because `PainlessExecuteAction`'s [`TransportAction`](https://github.com/elastic/elasticsearch/blob/8.5/modules/lang-painless/src/main/java/org/elasticsearch/painless/action/PainlessExecuteAction.java#L462) is a [`TransportSingleShardAction`](https://github.com/elastic/elasticsearch/blob/8.5/server/src/main/java/org/elasticsearch/action/support/single/shard/TransportSingleShardAction.java#L153) which uses [`IndexNameExpressionResolver.concreteIndices`](https://github.com/elastic/elasticsearch/blob/8.5/server/src/main/java/org/elasticsearch/cluster/metadata/IndexNameExpressionResolver.java#L331), which does not support remote clusters.

What would it take it enable PainlessExecuteAction to support CCS?

Kibana uses the execute api to validate runtime fields on edit, see https://github.com/elastic/kibana/issues/145861
modules/lang-painless/src/test/java/org/elasticsearch/painless/action/PainlessExecuteApiTests.java
"geo_point_field",
            contextSetup
        );
        Response response = innerShardOperation(request, scriptService, indexService);
        List<Map<String, Object>> points = (List<Map<String, Object>>) response.getResult();
        assertEquals(40.0, (double) ((List<Object>) points.get(0).get("coordinates")).get(0), 0.00001);
        assertEquals(30.0, (double) ((List<Object>) points.get(0).get("coordinates")).get(1), 0.00001);
        assertEquals("Point", points.get(0).get("type"));
        contextSetup = new Request.ContextSetup("index", new BytesArray("{}"), new MatchAllQueryBuilder());
        contextSetup.setXContentType(XContentType.JSON);
        request = new Request(
            new Script(ScriptType.INLINE, "painless", "emit(78.96, 12.12); emit(13.45, 56.78);", emptyMap()),
            "geo_point_field",
            contextSetup
        );
        response = innerShardOperation(request, scriptService, indexService);
        points = (List<Map<String, Object>>) response.getResult();
        assertEquals(12.12, (double) ((List<Object>) points.get(0).get("coordinates")).get(0), 0.00001);
        assertEquals(78.96, (double) ((List<Object>) points.get(0).get("coordinates")).get(1), 0.00001);
        assertEquals("Point", points.get(0).get("type"));
        assertEquals(56.78, (double) ((List<Object>) points.get(1).get("coordinates")).get(0), 0.00001);
        assertEquals(13.45, (double) ((List<Object>) points.get(1).get("coordinates")).get(1), 0.00001);
        assertEquals("Point", points.get(1).get("type"));
    }
    public void testIpFieldExecutionContext() throws IOException {
        ScriptService scriptService = getInstanceFromNode(ScriptService.class);
        IndexService indexService = createIndex("index", Settings.EMPTY, "doc", "test_ip", "type=ip");
        Request.ContextSetup contextSetup = new Request.ContextSetup(
            "index",
            new BytesArray("{\"test_ip\":\"192.168.1.254\"}"),