build: cleanup release scripts, separate cli entrypoints from logic (#44082)

* build: cleanup release scripts, separate cli entrypoints from logic

Co-authored-by: Samuel Attard <samuel.r.attard@gmail.com>

* build: use repo/org constants

Co-authored-by: Samuel Attard <samuel.r.attard@gmail.com>

---------

Co-authored-by: trop[bot] <37223003+trop[bot]@users.noreply.github.com>
Co-authored-by: Samuel Attard <samuel.r.attard@gmail.com>

script/release/bin/prepare-for-release.ts

@@ -0,0 +1,32 @@
+import { parseArgs } from 'node:util';
+
+import { prepareRelease } from '../prepare-release';
+import { ELECTRON_REPO, isVersionBumpType, NIGHTLY_REPO } from '../types';
+
+const { values: { branch }, positionals } = parseArgs({
+  options: {
+    branch: {
+      type: 'string'
+    }
+  },
+  allowPositionals: true
+});
+
+const bumpType = positionals[0];
+
+if (!bumpType || !isVersionBumpType(bumpType)) {
+  console.log('Usage: prepare-for-release [stable | minor | beta | alpha | nightly]' +
+     ' (--branch=branch)');
+  process.exit(1);
+}
+
+prepareRelease({
+  isPreRelease: bumpType !== 'stable' && bumpType !== 'minor',
+  targetRepo: bumpType === 'nightly' ? NIGHTLY_REPO : ELECTRON_REPO,
+  targetBranch: branch,
+  bumpType
+})
+  .catch((err) => {
+    console.error(err);
+    process.exit(1);
+  });