add mada-style-gradle 1.2.0

https://github.com/jvm-repo-rebuild/reproducible-central/blob/master/content/dk/mada/style/mada-style-gradle/README.md

Author: hboutemy

content/dk/mada/style/mada-style-gradle/mada-style-gradle-1.2.0.buildspec

@@ -0,0 +1,25 @@
+# see instructions https://github.com/jvm-repo-rebuild/reproducible-central/blob/master/doc/BUILDSPEC.md
+
+groupId=dk.mada.style
+artifactId=mada-style-gradle
+version=1.2.0
+
+display=${groupId}:${artifactId}
+
+# Source code
+gitRepo=https://github.com/jskov/${artifactId}.git
+gitTag=${version}
+
+# Rebuild environment prerequisites
+tool=gradle
+jdk=21
+newline=lf
+umask=022
+
+# Rebuild command
+command="bash ./gradlew --no-daemon javadoc publish publishToMavenLocal -Pversion=${version}"
+
+# Location of the buildinfo file generated during rebuild (by artifact:compare for Maven) to record output fingerprints
+buildinfo=${artifactId}-${version}.buildinfo
+
+issue=