make newEnv in environmentChanged nullable

Author: shalom938

ide-common/src/main/java/org/digma/intellij/plugin/analytics/EnvironmentChanged.java

@@ -2,7 +2,7 @@
 
 import com.intellij.util.messages.Topic;
 import org.digma.intellij.plugin.model.rest.environment.Env;
-import org.eclipse.sisu.Nullable;
+import org.jetbrains.annotations.Nullable;
 
 import java.util.List;
 

ide-common/src/main/java/org/digma/intellij/plugin/document/CodeLensProviderDocumentInfoAndEnvironmentChangedListener.java

@@ -6,7 +6,7 @@
 import org.digma.intellij.plugin.common.Backgroundable;
 import org.digma.intellij.plugin.errorreporting.ErrorReporter;
 import org.digma.intellij.plugin.model.rest.environment.Env;
-import org.eclipse.sisu.Nullable;
+import org.jetbrains.annotations.Nullable;
 
 import java.util.List;