migrate to 4.4.0 selenium-grid

[vdelendik]

let's start movement onto the latest 4.x.x selenium grid.
https://mvnrepository.com/artifact/org.seleniumhq.selenium/selenium-grid/4.4.0

<!-- https://mvnrepository.com/artifact/org.seleniumhq.selenium/selenium-grid -->
<dependency>
    <groupId>org.seleniumhq.selenium</groupId>
    <artifactId>selenium-grid</artifactId>
    <version>4.4.0</version>
</dependency>

[vdelendik]

removed milestone as preliminary testing shows that with selenium 4 grid we will utilise more resources