Gradle cache usage added

[bissquit]

Description

Adding Gradle cache usage

Fixes #974

Type of Change

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

Automated Testing

Build test has been run from a branch

Manual Scenario

At the developer machine it could be tested like this:

Run container:

docker run -it --name gradle-cache-test -v C:\path\to\repo\UTBotJava\:/UTBotJava --workdir /UTBotJava unittestbot/java-env:java11-zulu-jdk-gradle7.4.2-kotlinc1.7.0 /bin/bash

Run test as usual but don't forget to add --build-cache to reuse cache:

cd utbot-fuzzers
gradle --build-cache --no-daemon :utbot-fuzzers:test

Cache will be placed into ~/.gradle/caches

Checklist (remove irrelevant options):

This is the author self-check list

• Run test from branch
• If previous step is ok, change all related workflows to use cache

[viktoriia-fomina]

LGTM