Bump actions/checkout from 2.3.5 to 2.4.0 (home-assistant#2249)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/builder.yml

@@ -20,7 +20,7 @@ jobs:
       changed: ${{ steps.changed_addons.outputs.changed }}
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v2.3.5
+        uses: actions/checkout@v2.4.0
 
       - name: Get changed files
         id: changed_files
@@ -72,7 +72,7 @@ jobs:
 
     steps:
       - name: Check out repository
-        uses: actions/checkout@v2.3.5
+        uses: actions/checkout@v2.4.0
 
       - name: Get information
         id: info

.github/workflows/lint.yml

@@ -16,7 +16,7 @@ jobs:
     name: hadolint
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v2.3.5
+        uses: actions/checkout@v2.4.0
 
       - name: Run linter
         id: changed_files
@@ -34,7 +34,7 @@ jobs:
     name: JQ
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v2.3.5
+        uses: actions/checkout@v2.4.0
 
       - name: Run linter
         run: |
@@ -46,7 +46,7 @@ jobs:
     name: ShellCheck
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v2.3.5
+        uses: actions/checkout@v2.4.0
 
       - name: Run linter
         uses: ludeeus/[email protected]