Bump actions/checkout from 3 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/ci.yml

@@ -69,7 +69,7 @@ jobs:
             cabalopts: ''
             testopts: '--test-option=--hide-successes --test-option=--ansi-tricks=false'
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     # needed by memory
     - name: Install numa
@@ -117,7 +117,7 @@ jobs:
     runs-on: windows-2019
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     # declare/restore cached things
     # caching doesn't work for scheduled runs yet
@@ -160,7 +160,7 @@ jobs:
             cabal: '3.2'
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Install cabal/ghc
       run: |
@@ -210,7 +210,7 @@ jobs:
           - ghc: '9.2.2'
             cabal: '3.6'
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Install cabal/ghc
       run: |

.github/workflows/commit-validation.yml

@@ -8,7 +8,7 @@ jobs:
   check-commit-msg-length:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Check commit message length
       run: |
         # Get last commit messages

.github/workflows/format-validation.yml

@@ -44,7 +44,7 @@ jobs:
           - archiving
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Validate writer output
         run: |

.github/workflows/nightly.yml

@@ -9,7 +9,7 @@ jobs:
 
     runs-on: ubuntu-18.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Install recent cabal/ghc
       uses: haskell/actions/setup@v1
@@ -44,7 +44,7 @@ jobs:
     runs-on: windows-2019
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Install dependencies
       run: |
           stack update
@@ -70,7 +70,7 @@ jobs:
     runs-on: macOS-10.15
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Install dependencies
       run: |
           stack update

.github/workflows/release-candidate.yml

@@ -13,7 +13,7 @@ jobs:
 
     runs-on: ubuntu-18.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Create linux package
       run: |
           make debpkg
@@ -36,7 +36,7 @@ jobs:
             arch: "x64"
             stack_opts: "-j1"
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Install dependencies
       run: |
           stack update
@@ -90,7 +90,7 @@ jobs:
     runs-on: macOS-10.15
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Build executable
       run: |