Fix signing (#195)

Author: tginsberg

build.gradle.kts

@@ -102,6 +102,7 @@ jreleaser {
                     active.set(org.jreleaser.model.Active.RELEASE)
                     url = "https://central.sonatype.com/api/v1/publisher"
                     stagingRepository("build/staging-deploy")
+                    sign = false
                     applyMavenCentralRules = true
                 }
             }
@@ -110,6 +111,7 @@ jreleaser {
                     active.set(org.jreleaser.model.Active.SNAPSHOT)
                     snapshotUrl = "https://central.sonatype.com/repository/maven-snapshots"
                     url = "https://central.sonatype.com/repository/maven-snapshots"
+                    sign = false
                     applyMavenCentralRules = true
                     snapshotSupported = true
                     closeRepository = false