Added a test with a path diversion because of jdk statics

[Damtev]

Description

As described in #716, we have predicted a possible coverage regression because of not setting static fields from trusted libraries (JDK, for example). So, in this PR a test was added that demonstrates such a regression.

How to test

Automated tests

org.utbot.examples.stdlib.StaticsPathDiversionTest.

Manual tests

Not applicable.

Self-check list

• I've set the proper labels for my PR (at least, for category and component).
• PR title and description are clear and intelligible.
• I've added enough comments to my code, particularly in hard-to-understand areas.
• The functionality I've repaired, changed or added is covered with automated tests.
• Manual tests have been provided optionally.
• The documentation for the functionality I've been working on is up-to-date.