Upgrade dependencies to resolve security vulnerabilities

Entitlements service has dependencies with critical bugs and vulnerabilities:

Updating:

guava, because it has security vulnerabilities: CVE-2020-8908

bom for netty because of: CVE-2021-21290 and CVE-2021-21409 and CVE-2021-21295

Upgrading version of spring: WS-2016-7107 and WS-2020-0293 and CVE-2020-5421

Fixes were applied in common libraries.