update template path in pr build

Author: cat5inthecradle

cicd/3-app/javabuilder/pr-buildspec.yml

@@ -39,9 +39,9 @@ phases:
       - rake test
 
       - cd $CODEBUILD_SRC_DIR
-      - erb -T - template.yml.erb > template.yml
-      - cat template.yml
-      - cfn-lint template.yml
-      - aws cloudformation package --template-file template.yml --output-template-file cloudformation-output.yml --s3-bucket $ARTIFACT_STORE --s3-prefix "$ARTIFACT_PATH/cloudformation-package"
+      - erb -T - cicd/3-app/javabuilder/template.yml.erb > app-template.yml
+      - cat app-template.yml
+      - cfn-lint app-template.yml
+      - aws cloudformation package --template-file app-template.yml --output-template-file cloudformation-output.yml --s3-bucket $ARTIFACT_STORE --s3-prefix "$ARTIFACT_PATH/cloudformation-package"
       - aws s3 cp cloudformation-output.yml "s3://${ARTIFACT_STORE}/${ARTIFACT_PATH}/"
       - echo "Artifacts uploaded to S3, view them at https://console.aws.amazon.com/s3/buckets/${ARTIFACT_STORE}?region=us-east-1&prefix=${ARTIFACT_PATH}/"