Nullable annotation comes from JetBrains dependency

[vaprzemek]

Nullable annotation comes from JetBrains dependency

https://github.com/valueadd-poland/java-reports/blob/master/src/main/java/pl/valueadd/report/interceptor/ValueInterceptor.java#L3

        <dependency>
            <groupId>org.jetbrains</groupId>
            <artifactId>annotations</artifactId>
            <version>RELEASE</version>
            <scope>compile</scope>
        </dependency>