chore(deps): bump actions/checkout from 3 to 4 (#409)

.github/workflows/flakehub-publish-tagged.yml

@@ -11,7 +11,7 @@ jobs:
       id-token: "write"
       contents: "read"
     steps:
-      - uses: "actions/checkout@v3"
+      - uses: "actions/checkout@v4"
       - uses: "DeterminateSystems/nix-installer-action@main"
       - uses: "DeterminateSystems/flakehub-push@main"
         with:

.github/workflows/pages.yml

@@ -13,7 +13,7 @@ jobs:
     env:
       SSH_AUTH_SOCK: /tmp/ssh_agent.sock
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: cachix/install-nix-action@v22
     - uses: cachix/cachix-action@v12
       with:

.github/workflows/test.yml

@@ -36,7 +36,7 @@ jobs:
             nixpkgs-override: "--override-input nixpkgs github:NixOS/nixpkgs/release-23.05"
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: cachix/install-nix-action@v22
       with:
         install_url: ${{ matrix.install_url }}
@@ -69,7 +69,7 @@ jobs:
             filter: "-not -name build-std"
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: cachix/install-nix-action@v22
       with:
         install_url: ${{ matrix.install_url }}
@@ -89,7 +89,7 @@ jobs:
   check-dead-code:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: cachix/install-nix-action@v22
     - uses: cachix/cachix-action@v12
       with:
@@ -100,7 +100,7 @@ jobs:
   check-fmt:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: cachix/install-nix-action@v22
     - name: check formatting
       run: nix fmt --accept-flake-config -- --check .

.github/workflows/update-flake.yml

@@ -12,7 +12,7 @@ jobs:
   update-and-push-deps:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: cachix/install-nix-action@v22
       with:
         extra_nix_config: |