File check-a11y-java8.patch of Package check-a11y

--- a/Makefile	2024-06-20 10:37:39.833503714 +0200
+++ b/Makefile	2024-06-20 10:38:20.093786533 +0200
@@ -225,7 +225,7 @@
 endif
 
 %.class: %.java
-	javac -source 1.7 -target 1.7 $<
+	javac -source 1.8 -target 1.8 $<
 
 ifneq (,$(wildcard /usr/lib/jvm/java-7-openjdk-amd64/bin/java))
 JAVA7=Y