Use Mockito version compatible with Java 8 (#2275)

Use Mockito compatible with Java 8

Author: EgorkaKulikov

gradle.properties

@@ -25,7 +25,8 @@ goPluginVersion=231.8109.175
 junit5Version=5.8.2
 junit4Version=4.13.2
 junit4PlatformVersion=1.9.0
-mockitoVersion=5.2.0
+# NOTE: Mockito versions 5+ are not compatible with Java 8: https://www.davidvlijmincx.com/posts/upgrade-to-mockito-5
+mockitoVersion=4.11.0
 mockitoInlineVersion=5.2.0
 ksmtVersion=0.4.3
 sootVersion=4.4.0-FORK-2

utbot-intellij/src/main/kotlin/org/utbot/intellij/plugin/models/ExternalLibraryDescriptors.kt

@@ -36,7 +36,7 @@ fun jUnit5ParametrizedTestsLibraryDescriptor(versionInProject: Version?): Extern
 }
 
 fun mockitoCoreLibraryDescriptor(versionInProject: Version?): ExternalLibraryDescriptor {
-    val preferredVersion = if (versionInProject?.hasNumericOrEmptyPatch() == true) versionInProject?.plainText else "5.2.0"
+    val preferredVersion = if (versionInProject?.hasNumericOrEmptyPatch() == true) versionInProject?.plainText else "4.11.0"
     return ExternalLibraryDescriptor(
         "org.mockito", "mockito-core",
         "3.5.0", null, preferredVersion