chore: fix release workflow (#147)

Fixes #

Author: corymhall

.projen/tasks.json

@@ -297,7 +297,9 @@ workflow?.on({
 
 projenProject.packageTask.reset();
 projenProject.packageTask.exec(
-  'rm -rf dist && cp node_modules/@aws-cdk/aws-service-spec/db.json.gz ./ && ncc build --external fsevents --source-map --license licenses.txt',
+  'cp node_modules/@aws-cdk/aws-service-spec/db.json.gz ./ && ncc build --external fsevents --source-map --license licenses.txt',
 );
 workflow?.addJobs({ enableAutoMerge: autoMergeJob });
+
+projenProject.preCompileTask.exec('rm -rf dist');
 project.synth();