Update build.gradle (#600)

Author: poovamraj

build.gradle

@@ -11,13 +11,17 @@ repositories {
 group = 'com.auth0'
 logger.lifecycle("Using version ${version} for ${name} group $group")
 
+def signingKey = findProperty('signingKey')
+def signingKeyPwd = findProperty('signingPassword')
+
 oss {
     name 'auth0'
     repository 'auth0-java'
     organization 'auth0'
     description 'Java client library for the Auth0 platform.'
     baselineCompareVersion '2.0.0'
     testInJavaVersions = [8, 11, 17]
+    skipAssertSigningConfiguration true
 
     developers {
         auth0 {
@@ -31,6 +35,10 @@ oss {
     }
 }
 
+signing {
+  useInMemoryPgpKeys(signingKey, signingKeyPwd)
+}
+
 jacocoTestReport {
     reports {
         xml.enabled = true