Fixed deploy script on CI

package.json

@@ -31,7 +31,6 @@
     "@types/mocha": "~5.2.7",
     "@types/node": "~12.0.4",
     "chai": "~4.2.0",
-    "clean-publish": "~1.1.2",
     "mocha": "~6.2.2",
     "ts-compiler": "npm:typescript@4.8.2",
     "ts-node": "~8.4.1",

prepare-release.sh

@@ -11,6 +11,6 @@ npm run tsc
 cp -r lib/src/* dist/
 
 echo ">> Cleaning up a package.json file..."
-./node_modules/.bin/clear-package-json package.json --fields private -o package.json
+node scripts/clean-package-json.js
 
 echo "Package is ready to publish"

scripts/clean-package-json.js

@@ -0,0 +1,26 @@
+#!/usr/bin/env node
+
+/**
+ * This script does something like https://github.com/shashkovdanil/clean-publish does
+ * but it seems that clean-publish isn't supported anymore and we can't use it in CI
+ */
+
+const path = require('path');
+const fs = require('fs');
+
+function main() {
+	const packageJsonPath = path.resolve(__dirname, '..', 'package.json');
+
+	const packageJson = JSON.parse(fs.readFileSync(packageJsonPath, { encoding: 'utf-8' }));
+
+	delete packageJson.private;
+	delete packageJson.engines;
+	delete packageJson.devDependencies;
+	delete packageJson.scripts;
+
+	fs.writeFileSync(packageJsonPath, JSON.stringify(packageJson, null, 2) + '\n', { encoding: 'utf-8' });
+}
+
+if (require.main === module) {
+	main();
+}