doc: add missing require to stream api doc

PR-URL: #43237
Reviewed-By: Antoine du Hamel <[email protected]>

doc/api/stream.md

@@ -1215,6 +1215,7 @@ making it possible to set up chains of piped streams:
 
 ```js
 const fs = require('node:fs');
+const zlib = require('node:zlib');
 const r = fs.createReadStream('file.txt');
 const z = zlib.createGzip();
 const w = fs.createWriteStream('file.txt.gz');
@@ -2363,6 +2364,7 @@ or has experienced an error or a premature close event.
 
 ```js
 const { finished } = require('node:stream');
+const fs = require('node:fs');
 
 const rs = fs.createReadStream('archive.tar');
 
@@ -2385,6 +2387,7 @@ The `finished` API provides promise version:
 
 ```js
 const { finished } = require('node:stream/promises');
+const fs = require('node:fs');
 
 const rs = fs.createReadStream('archive.tar');
 
@@ -2483,6 +2486,8 @@ receive an options argument as the last parameter with a
 
 ```js
 const { pipeline } = require('node:stream/promises');
+const fs = require('node:fs');
+const zlib = require('node:zlib');
 
 async function run() {
   await pipeline(
@@ -2501,6 +2506,8 @@ as the last argument:
 
 ```js
 const { pipeline } = require('node:stream/promises');
+const fs = require('node:fs');
+const zlib = require('node:zlib');
 
 async function run() {
   const ac = new AbortController();