chore(README): bump actions

Author: gepbird

README.md

@@ -23,9 +23,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v5
       - name: Install Nix
-        uses: cachix/install-nix-action@v20
+        uses: cachix/install-nix-action@v31.5.2
       - name: Update flake packages
         uses: selfuryon/nix-update-action@v1
 ```
@@ -45,9 +45,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v5
       - name: Install Nix
-        uses: cachix/install-nix-action@v20
+        uses: cachix/install-nix-action@v31.5.2
       - name: Update flake packages
         uses: selfuryon/nix-update-action@v1
         with:
@@ -69,9 +69,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v5
       - name: Install Nix
-        uses: cachix/install-nix-action@v20
+        uses: cachix/install-nix-action@v31.5.2
       - name: Update flake packages
         uses: selfuryon/nix-update-action@v1
         with:
@@ -93,9 +93,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v5
       - name: Install Nix
-        uses: cachix/install-nix-action@v20
+        uses: cachix/install-nix-action@v31.5.2
       - name: Update flake packages
         id: update
         uses: selfuryon/nix-update-action@v1
@@ -118,9 +118,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v5
       - name: Install Nix
-        uses: cachix/install-nix-action@v20
+        uses: cachix/install-nix-action@v31.5.2
       - name: Update flake packages
         id: update
         uses: selfuryon/nix-update-action@v1
@@ -156,9 +156,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v5
       - name: Install Nix
-        uses: cachix/install-nix-action@v20
+        uses: cachix/install-nix-action@v31.5.2
       - name: Update flake packages
         id: update
         uses: selfuryon/nix-update-action@v1
@@ -184,9 +184,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v5
       - name: Install Nix
-        uses: cachix/install-nix-action@v20
+        uses: cachix/install-nix-action@v31.5.2
       - name: Update flake packages
         id: update
         uses: selfuryon/nix-update-action@v1