messages_aspectj.properties: update ECJ version string

Eclipse Compiler 40fa81de93 (24Mar2023) - Java20

Signed-off-by: Alexander Kriegisch <Alexander@Kriegisch.name>

org.aspectj.ajdt.core/src/main/resources/org/aspectj/org/eclipse/jdt/internal/compiler/batch/messages_aspectj.properties

@@ -1,5 +1,5 @@
 compiler.name = AspectJ Compiler
-compiler.version = Eclipse Compiler 19f448f47c9e3e (15Dec2022) - Java19
+compiler.version = Eclipse Compiler 40fa81de93d65b (24Mar2023) - Java20
 compiler.copyright =
 
 misc.version = {0} {1} - {2} {3}