Simplify build of che artifacts by PR check pipeline job

[dmytro-ndp]

What does this PR do?

It improves building of Che binaries in time of checking PR using E2E Happy path tests:

• decreases time of building by running it in 4 threads, and disabling unit tests and dependency analysis (which is in turn the task of Codenvy CI pr-build job);
• makes it more consistent by enforcing an update of depending artifacts.

Che was built in 1 minutes 7 seconds on slave9.

What issues does this PR fix or reference?

#14202

[dmytro-ndp]

crw-ci-test

[che-bot]

E2E Happy path tests of Eclipse Che Single User on K8S (minikube v1.1.1) has been successful:

• build details
• "che-server" docker image: maxura/che-server:14214

[che-bot]

E2E Happy path tests of Eclipse Che Single User on K8S (minikube v1.1.1) has failed:

• build details
• "che-server" docker image: maxura/che-server:14214
• test artifacts
• https://github.com/orgs/eclipse/teams/eclipse-che-qa please check this report.

[che-bot]

E2E Happy path tests of Eclipse Che Single User on K8S (minikube v1.1.1) has failed:

• build details
• "che-server" docker image: maxura/che-server:14214
• test artifacts
• https://github.com/orgs/eclipse/teams/eclipse-che-qa please check this report.

[che-bot]

E2E Happy path tests of Eclipse Che Single User on K8S (minikube v1.1.1) has failed:

• build details
• "che-server" docker image: maxura/che-server:14214
• test artifacts
• https://github.com/orgs/eclipse/teams/eclipse-che-qa please check this report.

[che-bot]

E2E Happy path tests of Eclipse Che Single User on K8S (minikube v1.1.1) has failed:

• build details
• "che-server" docker image: maxura/che-server:14214
• test artifacts
• https://github.com/orgs/eclipse/teams/eclipse-che-qa please check this report.

[che-bot]

E2E Happy path tests of Eclipse Che Single User on K8S (minikube v1.1.1) has been successful:

• build details
• "che-server" docker image: maxura/che-server:14214

[che-bot]

E2E Happy path tests of Eclipse Che Single User on K8S (minikube v1.1.1) has been successful:

• build details
• "che-server" docker image: maxura/che-server:14214

[che-bot]

E2E Happy path tests of Eclipse Che Single User on K8S (minikube v1.1.1) has been successful:

• build details
• "che-server" docker image: maxura/che-server:14214