Update AbstractEmbeddedTomcatSeleniumTest class

[harikrishna553]

Update below statement
FluentWait wait = new WebDriverWait(driver, 2).pollingEvery(100, TimeUnit.MILLISECONDS);
to
FluentWait wait = new WebDriverWait(driver, 2).pollingEvery(Duration.ofMillis(100));

Affected class: AbstractEmbeddedTomcatSeleniumTest.java
Affected methods: login, employeeLogin