ci(deps): bump actions/checkout from 4 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -36,7 +36,7 @@ jobs:
   lint:
     runs-on: [self-hosted, nixos, x86-64-v3, bare-metal]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install Nix
         uses: metacraft-labs/nixos-modules/.github/install-nix@main
@@ -56,7 +56,7 @@ jobs:
     runs-on: [self-hosted, nixos, x86-64-v3, bare-metal]
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install Nix
         uses: metacraft-labs/nixos-modules/.github/install-nix@main
@@ -85,7 +85,7 @@ jobs:
     runs-on: [self-hosted, nixos, x86-64-v3, bare-metal]
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install Nix
         uses: metacraft-labs/nixos-modules/.github/install-nix@main
@@ -115,7 +115,7 @@ jobs:
     runs-on: [self-hosted, nixos, x86-64-v3, bare-metal]
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install Nix
         uses: metacraft-labs/nixos-modules/.github/install-nix@main
@@ -144,7 +144,7 @@ jobs:
     runs-on: [self-hosted, nixos, x86-64-v3, bare-metal]
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install Nix
         uses: metacraft-labs/nixos-modules/.github/install-nix@main
@@ -202,7 +202,7 @@ jobs:
     runs-on: ${{ matrix.runner }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install Nix
         uses: metacraft-labs/nixos-modules/.github/install-nix@main
@@ -223,7 +223,7 @@ jobs:
     runs-on: [self-hosted, nixos, x86-64-v3, bare-metal]
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install Nix
         uses: metacraft-labs/nixos-modules/.github/install-nix@main
@@ -270,7 +270,7 @@ jobs:
       docsUiDeploymentMessage: ${{ steps.docs-ui-ws-url.outputs.url }}
       uiDeploymentMessage: ${{ steps.ui-ws-url.outputs.url }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install Nix
         uses: metacraft-labs/nixos-modules/.github/install-nix@main

.github/workflows/on-main.yml

@@ -32,7 +32,7 @@ jobs:
             project_name: blocksense-ui
             build_command: yarn workspace @blocksense/ui build-storybook
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: cachix/cachix-action@v16
         with: