chore(adc-publishing): build standalone release in 'release' workflow (#119)

`release` doesn't call `build`, but has its own implementation of
building instead.

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

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Signed-off-by: github-actions <[email protected]>
Co-authored-by: Momo Kornher <[email protected]>
Co-authored-by: github-actions <[email protected]>

Author: 3 people

.projen/tasks.json

@@ -5,11 +5,13 @@ import { JobPermission } from 'projen/lib/github/workflows-model';
 export class AdcPublishing extends Component {
   constructor(private readonly project_: Monorepo) {
     super(project_);
-
-    this.project.tasks.tryFind('build')?.exec('tsx projenrc/build-standalone-zip.task.ts');
   }
 
   public preSynthesize() {
+    for (const taskName of ['build', 'release']) {
+      this.project.tasks.tryFind(taskName)?.exec('tsx projenrc/build-standalone-zip.task.ts');
+    }
+
     const releaseWf = this.project_.github?.tryFindWorkflow('release');
     if (!releaseWf) {
       throw new Error('Could not find release workflow');