### 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boolean property, as well as the `expiration` property that contains the UNIX timestamp past of which the key is no longer valid for authentication.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/core/src/main/java/org/elasticsearch/xpack/core/security/action/apikey/GetApiKeyRequest.java
ownedByAuthenticatedUser = in.readOptionalBoolean();
        } else {
            ownedByAuthenticatedUser = false;
        }
        if (in.getTransportVersion().onOrAfter(TransportVersion.V_8_5_0)) {
            withLimitedBy = in.readBoolean();
        } else {
            withLimitedBy = false;
        }
    }
    private GetApiKeyRequest(
        @Nullable String realmName,
        @Nullable String userName,
        @Nullable String apiKeyId,
        @Nullable String apiKeyName,
        boolean ownedByAuthenticatedUser,
        boolean withLimitedBy
    ) {
        this.realmName = textOrNull(realmName);
        this.userName = textOrNull(userName);
        this.apiKeyId = textOrNull(apiKeyId);
        this.apiKeyName = textOrNull(apiKeyName);
        this.ownedByAuthenticatedUser = ownedByAuthenticatedUser;
        this.withLimitedBy = withLimitedBy;
    }
    private static String textOrNull(@Nullable String arg) {
        return Strings.hasText(arg) ? arg : null;
    }
    public String getRealmName() {
        return realmName;