Add-on should depend on Spring Security 5.5

[gorbunkov]

In CUBA issue cuba-platform/cuba#3282 Spring Security dependency has been upgraded to version 5.5. REST API add-on takes Spring Security version from CUBA BOM file. In order to actually update Spring Security dependency in REST API we need to build the new add-on release.

This should also fix SAML add-on issue cuba-platform/saml-addon#30, because that issue is only relevant to specific Spring Security 5.2 versions. After REST API add-on depends on Spring Security 5.5, the SAML issue should disappear.

[gorbunkov]

For QA: please do a smoke-testing of the restapi add-on

[igisho]

After update /app/dispatch/ endpoint startet to fail https://doc.cuba-platform.com/manual-latest/dispatcher-spring.xml.html

[gorbunkov]

@igisho I've just tried to create a new project with CUBA 7.2.20 and REST 7.2.6 - dispatcher controllers seem to work fine.

Please create a separate issue with steps describing how to reproduce the problem.

[igisho]

@gorbunkov done: cuba-platform/cuba#3298