chore: fix package.sh for publishing (#1035)

The `release` and `bump` tasks write to `dist/changelog.md` and
`dist/version.txt`. Unfortunately, the `publish.sh` script that delivlib
uses removes the `dist` directory before copying over the artifacts. This caused
the release to fail.

.projenrc.js

@@ -43,6 +43,8 @@ const project = new TypeScriptProject({
     secret: 'GITHUB_TOKEN',
   },
   autoApproveUpgrades: true,
+
+  releaseToNpm: true,
 });
 
 // trick projen so that it doesn't override the version in package.json
@@ -66,7 +68,4 @@ compileCustomResourceHandlers.exec('/bin/bash ./build-custom-resource-handlers.s
 
 project.compileTask.prependSpawn(compileCustomResourceHandlers);
 
-project.packageTask.reset();
-project.packageTask.exec('/bin/bash ./package.sh');
-
 project.synth();