Refactoring to leverage Java 17 and avoid deprecated classes

[michalvavrik]

Summary

I checked every FW class to find something deprecated or only relevant for Quarkus 1.x versions and while doing it, did some small changes I would otherwise not do. This PR contains:

• unimportant refactoring I did while checking classes
• Infinispan classes are marked for removal: https://access.redhat.com/webassets/avalon/d/red_hat_jboss_enterprise_application_platform/8.0/javadocs/org/infinispan/commons/configuration/XMLStringConfiguration.html https://www.javadoc.io/doc/org.infinispan.protostream/protostream/5.0.4.Final/org/infinispan/protostream/annotations/AutoProtoSchemaBuilder.html
• the toClassScenarioContext method became irrelevant after tracing TFW extension removal.
• io.quarkus.test.scenarios.KubernetesDeploymentStrategy#supplier and io.quarkus.test.scenarios.OpenShiftDeploymentStrategy#supplier max line length is 128 according to our checkstyle and formatter doesn't really allow any division of that field declaration

Please check the relevant options

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Dependency update
• Refactoring
• Breaking change (fix or feature that would cause existing functionality to change)
• This change requires a documentation update
• This change requires execution against OCP (use run tests phrase in comment)

Checklist:

• Example scenarios has been updated / added
• Methods and classes used in PR scenarios are meaningful
• Commits are well encapsulated and follow the best practices

[michalvavrik]

run tests

[michalvavrik]

run tests

[jedla97]

Thanks for refactoring! These changes make sense to me. CI is passing so merging this.