ci: upgrade checkout and mise actions for Node 24

Author: syscod3

.github/workflows/ci.yml

@@ -11,10 +11,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup mise
-        uses: jdx/mise-action@v2
+        uses: jdx/mise-action@v4
 
       - name: Install Nix
         uses: cachix/install-nix-action@v25
@@ -33,10 +33,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup mise
-        uses: jdx/mise-action@v2
+        uses: jdx/mise-action@v4
 
       - name: Install toolchain
         run: mise install