chore(deps): update actions/checkout action to v2.4.0 (#639)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -6,7 +6,7 @@ jobs:
   typecheck:
     runs-on: ubuntu-20.04
     steps:
-    - uses: actions/checkout@v2.3.5
+    - uses: actions/checkout@v2.4.0
     - name: Use Node.js
       uses: actions/[email protected]
       with:
@@ -19,7 +19,7 @@ jobs:
   lint:
     runs-on: ubuntu-20.04
     steps:
-    - uses: actions/checkout@v2.3.5
+    - uses: actions/checkout@v2.4.0
     - name: Use Node.js
       uses: actions/[email protected]
       with:
@@ -35,7 +35,7 @@ jobs:
       matrix:
         node: [ '14', '16', '17' ]
     steps:
-    - uses: actions/checkout@v2.3.5
+    - uses: actions/checkout@v2.4.0
     - name: Use Node.js
       uses: actions/[email protected]
       with:
@@ -51,7 +51,7 @@ jobs:
     needs: [test]
     if: github.ref == 'refs/heads/main'
     steps:
-    - uses: actions/checkout@v2.3.5
+    - uses: actions/checkout@v2.4.0
       with:
         fetch-depth: "0"
         persist-credentials: false

.github/workflows/pull_request_title.yml

@@ -8,7 +8,7 @@ jobs:
   check-title:
     runs-on: ubuntu-20.04
     steps:
-    - uses: actions/checkout@v2.3.5
+    - uses: actions/checkout@v2.4.0
     - name: Use Node.js
       uses: actions/[email protected]
       with: