gnu: java-picard-1.113: Use ant/java8.

* gnu/packages/bioinformatics.scm (java-picard-1.113)[arguments]: Use
ant/java8.
[inputs]: Replace ant with ant/java8.

gnu/packages/bioinformatics.scm

@@ -4165,6 +4165,7 @@ VCF.")
        ;; [testng] Exception in thread "main" java.lang.NoClassDefFoundError: com/beust/jcommander/ParameterException
        #:tests? #f
        #:jdk ,icedtea-8
+       #:ant ,ant/java8
        ;; This is only used for tests.
        #:make-flags
        (list "-Dsamjdk.intel_deflater_so_path=lib/jni/libIntelDeflater.so")
@@ -4242,7 +4243,7 @@ VCF.")
      `(("java-snappy-1" ,java-snappy-1)
        ("java-commons-jexl-2" ,java-commons-jexl-2)
        ("java-cofoja" ,java-cofoja)
-       ("ant" ,ant) ; for bzip2 support at runtime
+       ("ant" ,ant/java8) ; for bzip2 support at runtime
        ("zlib" ,zlib)))
     (native-inputs
      `(("ant-apache-bcel" ,ant-apache-bcel)