refactor: upgrade to pnpm 10 and update docs

Signed-off-by: Sped0n <hi@sped0n.com>

.github/workflows/build.yml

@@ -61,7 +61,7 @@ jobs:
       - name: Setup pnpm
         uses: pnpm/action-setup@v3
         with:
-          version: 8
+          version: 10
 
       - name: Get pnpm store directory
         id: pnpm-cache

.github/workflows/eslint.yml

@@ -24,7 +24,7 @@ jobs:
       - name: Setup pnpm
         uses: pnpm/action-setup@v3
         with:
-          version: 8
+          version: 10
 
       - name: Get pnpm store directory
         id: pnpm-cache

docs.md

@@ -32,17 +32,12 @@ _[Contents](#contents)_
   hugo v0.152.2+extended+withdeploy darwin/arm64 BuildDate=unknown VendorInfo=nixpkgs
   ```
 
-- [Dart Sass](https://gohugo.io/functions/css/sass/#dart-sass) (**DO NOT INSTALL IT FROM NPM**, since it is doesn't support `--embedded`)
+- pnpm and Node.js
 
   ```bash
-  ❯ sass --embedded --version
-  {
-    "protocolVersion": "2.4.0",
-    "compilerVersion": "1.70.0",
-    "implementationVersion": "1.70.0",
-    "implementationName": "dart-sass",
-    "id": 0
-  }
+  ❯ pnpm --version && node --version
+  10.20.0
+  v22.20.0
   ```
 
 ## Installation

package.json

@@ -3,7 +3,7 @@
   "version": "v1.0.0",
   "type": "module",
   "description": "bridget theme source file",
-  "packageManager": "pnpm@8.10.2",
+  "packageManager": "pnpm@10.20.0",
   "private": true,
   "sideEffects": false,
   "scripts": {