When resolving a user's roles, if there are any roles that depend on DLS/FLS, and that is not permitted by the current license, we skip them.
https://github.com/elastic/elasticsearch/blob/f435488484ec844962d49371b8917c135fe6f714/x-pack/plugin/security/src/main/java/org/elasticsearch/xpack/security/authz/store/CompositeRolesStore.java#L188-L192

However, we do not perform any logging in this circumstance, and rely on the user discovering that their roles are missing.

We should
1. Add a `WARN` log message
2. Add a Warning header

when this occurs. 
x-pack/plugin/security/src/test/java/org/elasticsearch/xpack/security/authz/store/CompositeRolesStoreTests.java
settings,
            roleProviders,
            privilegeStore,
            new ThreadContext(settings),
            licenseState,
            cache,
            apiKeyService,
            serviceAccountService,
            documentSubsetBitsetCache,
            TestRestrictedIndices.RESTRICTED_INDICES,
            roleConsumer
        ) {
            @Override
            public void invalidateAll() {
                if (onInvalidation == null) {
                    super.invalidateAll();
                } else {
                    onInvalidation.accept(this);
                }
            }
        };
    }
    private RoleProviders buildRolesProvider(
        @Nullable FileRolesStore fileRolesStore,
        @Nullable NativeRolesStore nativeRolesStore,
        @Nullable ReservedRolesStore reservedRolesStore,
        @Nullable Map<String, List<BiConsumer<Set<String>, ActionListener<RoleRetrievalResult>>>> customRoleProviders,
        @Nullable XPackLicenseState licenseState
    ) {
        if (fileRolesStore == null) {