Fixed jenkins build

Jenkinsfile

@@ -71,8 +71,8 @@ pipeline {
       steps {
         script {
           String gitCredentials = scm.userRemoteConfigs[0].credentialsId
-          if (!gitCredentials) { error('Release builds require an SCM SSH credential with permission to push tags') }
-          sshagent(credentials: [gitCredentials]) {
+          if (!gitCredentials) { error('Release builds require an SCM HTTPS username/password credential with permission to push tags') }
+          withCredentials([gitUsernamePassword(credentialsId: gitCredentials, gitToolName: scm.gitTool ?: 'Default')]) {
             sh 'mkdir -p target && sh scripts/release-notes.sh generate "$BUILD_VERSION" > target/release-notes.md'
           }
         }
@@ -102,7 +102,7 @@ pipeline {
       when { branch pattern: 'release/**', comparator: 'GLOB' }
       steps {
         script {
-          sshagent(credentials: [scm.userRemoteConfigs[0].credentialsId]) {
+          withCredentials([gitUsernamePassword(credentialsId: scm.userRemoteConfigs[0].credentialsId, gitToolName: scm.gitTool ?: 'Default')]) {
             sh 'sh scripts/release-notes.sh publish "$BUILD_VERSION"'
           }
         }