build(deps): bump actions/checkout from 2.4.0 to 3.2.0

.github/workflows/check-deps.yml

@@ -12,7 +12,7 @@ jobs:
     if: github.repository_owner == 'envoyproxy'
     steps:
       - name: Checkout repository
-        uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579
+        uses: actions/checkout@755da8c3cf115ac066823e79a1e1788f8940201b
         with:
           ref: ${{ github.head_ref }}
       - name: Set up Python ${{ matrix.python-version }}

.github/workflows/codeql-daily.yml

@@ -13,7 +13,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579
+      uses: actions/checkout@755da8c3cf115ac066823e79a1e1788f8940201b
       with:
         # We must fetch at least the immediate parents so that if this is
         # a pull request then we can checkout the head.

.github/workflows/codeql-push.yml

@@ -16,7 +16,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579
+      uses: actions/checkout@755da8c3cf115ac066823e79a1e1788f8940201b
       with:
         # We must fetch at least the immediate parents so that if this is
         # a pull request then we can checkout the head.

.github/workflows/pr_notifier.yml

@@ -10,7 +10,7 @@ jobs:
     if: github.repository_owner == 'envoyproxy'
 
     steps:
-    - uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579
+    - uses: actions/checkout@755da8c3cf115ac066823e79a1e1788f8940201b
     - name: Set up Python 3.8
       uses: actions/setup-python@v3
       with: