fix jnekins

Jenkinsfile

@@ -36,7 +36,6 @@ pipeline {
             steps {
                 script {
                     // Build with commit hash tag
-                    GIT_COMMIT_HASH = sh(script: 'git rev-parse --short HEAD', returnStdout: true).trim()
                     sh '''
                         docker build -t ${DOCKER_HUB_USERNAME}/${IMAGE_NAME}:latest .
                         docker tag ${DOCKER_HUB_USERNAME}/${IMAGE_NAME}:latest ${DOCKER_HUB_USERNAME}/${IMAGE_NAME}:${GIT_COMMIT_HASH}
@@ -47,7 +46,6 @@ pipeline {
         
         stage('Push to Docker Hub') {
             steps {
-                GIT_COMMIT_HASH = sh(script: 'git rev-parse --short HEAD', returnStdout: true).trim()
                 sh '''
                     # Push both tags
                     docker push ${DOCKER_HUB_USERNAME}/${IMAGE_NAME}:${GIT_COMMIT_HASH}