### 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boolean property, as well as the `expiration` property that contains the UNIX timestamp past of which the key is no longer valid for authentication.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
service.createApiKey(authentication, createApiKeyRequest, Set.of(), future);
        final EsRejectedExecutionException e = expectThrows(EsRejectedExecutionException.class, future::actionGet);
        assertThat(e, is(rejectedExecutionException));
    }
    public void testCachedApiKeyValidationWillNotBeBlockedByUnCachedApiKey() throws IOException, ExecutionException, InterruptedException {
        final String apiKeyId1 = randomAlphaOfLength(12);
        final String apiKey1 = randomAlphaOfLength(16);
        Hasher hasher = getFastStoredHashAlgoForTests();
        final char[] hash = hasher.hash(new SecureString(apiKey1.toCharArray()));
        Map<String, Object> sourceMap = buildApiKeySourceDoc(hash);
        final Object metadata = sourceMap.get("metadata_flattened");
        mockSourceDocument(apiKeyId1, sourceMap);
        
        ApiKeyService service = createApiKeyService(Settings.EMPTY);
        final ApiKeyCredentials creds = getApiKeyCredentials(apiKeyId1, apiKey1, parseTypeFromSourceMap(sourceMap));
        final PlainActionFuture<AuthenticationResult<User>> future = new PlainActionFuture<>();
        service.tryAuthenticate(threadPool.getThreadContext(), creds, future);
        final AuthenticationResult<User> authenticationResult = future.get();
        assertEquals(AuthenticationResult.Status.SUCCESS, authenticationResult.getStatus());
        checkAuthApiKeyMetadata(metadata, authenticationResult);
        
        final ExecutorService mockExecutorService = mock(ExecutorService.class);
        when(threadPool.executor(SECURITY_CRYPTO_THREAD_POOL_NAME)).thenReturn(mockExecutorService);
        Mockito.doAnswer(invocationOnMock -> {
            final AbstractRunnable actionRunnable = (AbstractRunnable) invocationOnMock.getArguments()[0];
            actionRunnable.onRejection(new EsRejectedExecutionException("rejected"));
            return null;
        }).when(mockExecutorService).execute(any(Runnable.class));
        
        final String apiKeyId2 = randomAlphaOfLength(12);