### Description

The [Get API key information API](https://www.elastic.co/guide/en/elasticsearch/reference/master/security-api-get-api-key.html) can currently filter the returned keys by:
 * key id/name
 * keys owned by the calling user
 * keys owned by other users, by `realm_name` and `username`

Irrespective of the filtering used, both invalidated and expired (but not yet deleted) keys will be included in the response.
In the response, keys have the `invalidated` boolean property, as well as the `expiration` property that contains the UNIX timestamp past of which the key is no longer valid for authentication.

I propose we introduce a way for the API to support retrieving:
* only valid API keys (not return invalidated keys) - using a boolean request parameter
* keys not expired before a certain timestamp - using a timestamp parameter that defaults to "now" - also note that keys' experiation date is always checked against the local node's clock
x-pack/plugin/security/src/test/java/org/elasticsearch/xpack/security/authc/ApiKeyServiceTests.java
assertThat(ex.getCause(), instanceOf(IllegalArgumentException.class));
        assertThat(ex.getMessage(), containsString("authentication via API key not supported: only the owner user can update an API key"));
    }
    public void testCrossClusterApiKeyUsageStats() {
        final Instant now = Instant.now();
        when(clock.instant()).thenReturn(now);
        when(client.threadPool()).thenReturn(threadPool);
        SearchRequestBuilder searchRequestBuilder = Mockito.spy(new SearchRequestBuilder(client, SearchAction.INSTANCE));
        when(client.prepareSearch(eq(SECURITY_MAIN_ALIAS))).thenReturn(searchRequestBuilder);
        final List<SearchHit> searchHits = new ArrayList<>();
        final int ccsKeys = randomIntBetween(0, 2);
        for (int i = 0; i < ccsKeys; i++) {
            searchHits.add(searchHitForCrossClusterApiKey(0));
        }
        final int ccrKeys = randomIntBetween(0, 2);
        for (int i = 0; i < ccrKeys; i++) {
            searchHits.add(searchHitForCrossClusterApiKey(1));
        }
        final int ccsCcrKeys = randomIntBetween(0, 2);
        for (int i = 0; i < ccsCcrKeys; i++) {
            searchHits.add(searchHitForCrossClusterApiKey(2));
        }
        final AtomicReference<SearchRequest> searchRequest = new AtomicReference<>();
        doAnswer(invocationOnMock -> {
            searchRequest.set(invocationOnMock.getArgument(0));
            final var searchResponse = new SearchResponse(
                new InternalSearchResponse(
                    new SearchHits(
                        searchHits.toArray(SearchHit[]::new),
                        new TotalHits(searchHits.size(), TotalHits.Relation.EQUAL_TO),