chore: skip jsii packaging on regular build (#81)

jsii packaging is done as part of the 'release' workflow, so don't run
the packaging steps as part of the normal build. This saves ~17% of
build time on my machine.

---

By submitting this pull request, I confirm that my contribution is made
under the terms of the Apache-2.0 license

Co-authored-by: Momo Kornher <[email protected]>

Author: rix0rrr

Diff for: packages/@aws-cdk/cli-lib-alpha/.projen/tasks.json

@@ -1765,7 +1765,7 @@ class FakeCloudFormation extends Deployments {
 }
 
 function cliTest(name: string, handler: (dir: string) => void | Promise<any>): void {
-  test(name, () => withTempDir(handler));
+  test(name, () => withTempDir(handler), 120000);
 }
 
 async function withTempDir(cb: (dir: string) => void | Promise<any>) {

Diff for: packages/@aws-cdk/cloud-assembly-schema/.projen/tasks.json

@@ -215,10 +215,15 @@ export class JsiiBuild extends pj.Component {
       // Only run in CI
       condition: 'node -e "if (!process.env.CI) process.exit(1)"',
     });
+
+    // Do not spawn 'package-all' automatically as part of 'package', the jsii packaging will
+    // be done as part of the release task.
+    /*
     tsProject.packageTask.spawn(this.packageAllTask, {
       // Don't run in CI
       condition: 'node -e "if (process.env.CI) process.exit(1)"',
     });
+    */
 
     const targets: Record<string, any> = {};