fix : pom.xml and CalculatorStep

[emmo78]

add annotation @CucumberContextConfiguration in CalculatorStep
to avoid :
io.cucumber.core.backend.CucumberBackendException: Please annotate a glue class with some context configuration.
For example:
@CucumberContextConfiguration
@SpringBootTest(classes = TestConfig.class)
public class CucumberSpringConfiguration { }
Or:
@CucumberContextConfiguration
@ContextConfiguration( ... )
public class CucumberSpringConfiguration { }

I update pom.xml in agreement with https://cucumber.io/docs/installation/java/ and for vulnerabilities in Log4j