fix: remove dependency get-stdin

The get-stdin package has now gone to ESM and can not be used by
common js package. This removes the dependency and implements the
package.

Author: AdeAttwood

@commitlint/cli/package.json

@@ -48,7 +48,6 @@
     "@commitlint/load": "^12.1.1",
     "@commitlint/read": "^12.1.1",
     "@commitlint/types": "^12.1.1",
-    "get-stdin": "9.0.0",
     "lodash": "^4.17.19",
     "resolve-from": "5.0.0",
     "resolve-global": "1.0.0",

@commitlint/cli/src/cli.ts

@@ -2,7 +2,6 @@ import load from '@commitlint/load';
 import lint from '@commitlint/lint';
 import read from '@commitlint/read';
 import isFunction from 'lodash/isFunction';
-import stdin from 'get-stdin';
 import resolveFrom from 'resolve-from';
 import resolveGlobal from 'resolve-global';
 import yargs from 'yargs';
@@ -126,6 +125,22 @@ main({edit: false, ...cli.argv}).catch((err) => {
 	}, 0);
 });
 
+async function stdin() {
+	let result = '';
+
+	if (process.stdin.isTTY) {
+		return result;
+	}
+
+	process.stdin.setEncoding('utf8');
+
+	for await (const chunk of process.stdin) {
+		result += chunk;
+	}
+
+	return result;
+}
+
 async function main(options: CliFlags) {
 	const raw = options._;
 	const flags = normalizeFlags(options);

yarn.lock

@@ -4945,11 +4945,6 @@ get-port@^5.0.0, get-port@^5.1.1:
   resolved "https://registry.npmjs.org/get-port/-/get-port-5.1.1.tgz#0469ed07563479de6efb986baf053dcd7d4e3193"
   integrity sha512-g/Q1aTSDOxFpchXC4i8ZWvxA1lnPqx/JHqcpIw0/LX9T8x/GBbi6YnlN5nhaKIFkT8oFsscUKgDJYxfwfS6QsQ==
 
-[email protected]:
-  version "9.0.0"
-  resolved "https://registry.npmjs.org/get-stdin/-/get-stdin-9.0.0.tgz#3983ff82e03d56f1b2ea0d3e60325f39d703a575"
-  integrity sha512-dVKBjfWisLAicarI2Sf+JuBE/DghV4UzNAVe9yhEJuzeREd3JhOTE9cUaJTeSa77fsbQUK3pcOpJfM59+VKZaA==
-
 get-stdin@^4.0.1:
   version "4.0.1"
   resolved "https://registry.npmjs.org/get-stdin/-/get-stdin-4.0.1.tgz#b968c6b0a04384324902e8bf1a5df32579a450fe"