Module java.base opens package java.lang to unnamed module

This is only for JDK >= 16.

Without this fix some unit tests that uses Mockito will fail with the
following error:

```
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make protected final java.lang.Class java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain) throws java.lang.ClassFormatError accessible: module java.base does not "opens java.lang" to unnamed module @cafebabe
```

We notice this error only after upgrade JaCoCo to version 0.8.9 because
prior this version the error was being hide by a side effect of JaCoCo.

See: jacoco/jacoco#1334
See: jacoco/jacoco#1328
See: #86 (comment)
See: #86 (comment)
See: #86 (comment)
See: #87

This is a workaround and the added profile should be removed in the
future in order of a definitive fix (maybe Mockito upgrade).

This reverts commit 31a8d68.

jaguar2-build/pom.xml

@@ -78,7 +78,7 @@
 		<maven.compiler.source>${source}</maven.compiler.source>
 		<maven.compiler.target>${bytecode}</maven.compiler.target>
 		<ba-dua.version>0.8.0</ba-dua.version>
-		<jacoco.version>0.8.8</jacoco.version>
+		<jacoco.version>0.8.9</jacoco.version>
 		<gpg.skip>true</gpg.skip>
 	</properties>
 

pom.xml

@@ -253,6 +253,16 @@
 				<additionalJOption>-html5</additionalJOption>
 			</properties>
 		</profile>
+		<profile>
+			<id>mockito-add-opens</id>
+			<activation>
+				<!-- Required only for Java >= 16 -->
+				<jdk>[16,)</jdk>
+			</activation>
+			<properties>
+				<argLine>--add-opens=java.base/java.lang=ALL-UNNAMED</argLine>
+			</properties>
+		</profile>
 		<profile>
 			<id>animal-sniffer-bytecode-java21</id>
 			<activation>