style: enable MissingSwitchDefault in CheckStyle (#5188)

Author: vil02

checkstyle.xml

@@ -166,7 +166,7 @@
     <module name="IllegalInstantiation"/>
     <module name="InnerAssignment"/>
     <!-- TODO <module name="MagicNumber"/> -->
-    <!-- TODO <module name="MissingSwitchDefault"/> -->
+    <module name="MissingSwitchDefault"/>
     <module name="MultipleVariableDeclarations"/>
     <module name="SimplifyBooleanExpression"/>
     <module name="SimplifyBooleanReturn"/>