add .bytes() method to various readables (#11104)

Co-authored-by: Jarred Sumner <jarred@jarredsumner.com>
Co-authored-by: nektro <nektro@users.noreply.github.com>

docs/api/utils.md

@@ -275,6 +275,7 @@ Bun.stringWidth("\u001b[31mhello\u001b[0m", { countAnsiEscapeCodes: true }); //
 ```
 
 This is useful for:
+
 - Aligning text in a terminal
 - Quickly checking if a string contains ANSI escape codes
 - Measuring the width of a string in a terminal
@@ -372,7 +373,6 @@ npm/string-width 95,000 chars ansi+emoji+ascii     3.68 s/iter        (3.66 s
 
 {% /details %}
 
-
 TypeScript definition:
 
 ```ts
@@ -400,7 +400,6 @@ namespace Bun {
 }
 ```
 
-
 <!-- ## `Bun.enableANSIColors()` -->
 
 ## `Bun.fileURLToPath()`
@@ -603,6 +602,9 @@ stream; // => ReadableStream
 await Bun.readableStreamToArrayBuffer(stream);
 // => ArrayBuffer
 
+await Bun.readableStreamToBytes(stream);
+// => Uint8Array
+
 await Bun.readableStreamToBlob(stream);
 // => Blob