chore(deps): bump actions/checkout from 3 to 4 (#4407)

Author: dependabot[bot]

.github/workflows/docs.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: CHANGELOG.org -> CHANGELOG.md
         uses: docker://pandoc/core:2.9

.github/workflows/lint.yml

@@ -10,7 +10,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: purcell/setup-emacs@master
         with:

.github/workflows/test.yml

@@ -69,7 +69,7 @@ jobs:
       if: runner.os == 'Linux'
       run: "clangd-11 --version"
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Grant execution permission
       if: matrix.os == 'ubuntu-latest' || matrix.os == 'macos-latest'