ci: use node lts

Author: velut

.github/workflows/main.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v4
         with:
-          node-version: 20.x
+          node-version: lts/*
           cache: "pnpm"
 
       - name: Setup bun

.github/workflows/not-main.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v4
         with:
-          node-version: 20.x
+          node-version: lts/*
           cache: "pnpm"
 
       - name: Setup bun