Updated class name in test file

Author: srnkan

app/test/processing/app/UpdateCheckTest.java

@@ -12,7 +12,7 @@
 import static org.junit.jupiter.api.Assertions.*;
 import static org.mockito.Mockito.*;
 
-class StreamClosedTest {
+class UpdateCheckTest {
 
     @TempDir
     Path tempDir;