[Chore][DEVX-522] Remove Buffer Module (#902)

* chore(sdk-client-v3): remove buffer module

- remove all instance of the buffer module to ensure compatibility with client side applications

* chore(release-changeset): add release changeset

- uninstall buffer module
- add release changeset

.changeset/gentle-ravens-notice.md

@@ -0,0 +1,5 @@
+---
+'@commercetools/ts-client': patch
+---
+
+remove buffer module and replace with js native String.normalize function

package.json

@@ -43,7 +43,6 @@
     "@types/node": "^20.0.0",
     "axios": "^1.7.7",
     "babel-jest": "29.7.0",
-    "buffer": "^6.0.3",
     "clean-webpack-plugin": "^4.0.0",
     "codecov": "^3.2.5",
     "esbuild": "^0.24.0",

packages/sdk-client-v3/src/utils/byteLength.ts

@@ -1,8 +1,10 @@
-var Buffer = require('buffer/').Buffer
-
 export default function byteLength<T>(body: T): string {
-  if (body && (typeof body === 'string' || body instanceof Uint8Array)) {
-    return Buffer.byteLength(body).toString()
+  if (body && typeof body === 'string') {
+    return body.normalize('NFD').length.toString()
+  }
+
+  if (body && body instanceof Uint8Array) {
+    return new TextDecoder().decode(body).length.toString()
   }
 
   if (body && typeof body === 'object') {