ci: update checkout to v4 (to fix warning)

Fixes Github deprecation warning:

  Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v3

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Author: krzk

.github/workflows/ci.yml

@@ -181,7 +181,7 @@ jobs:
         echo "PKG_CONFIG_PATH: $PKG_CONFIG_PATH"
 
     - name: Git checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Install additional packages
       run: |

.github/workflows/codeql-analysis.yml

@@ -24,7 +24,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Initialize CodeQL
       uses: github/codeql-action/init@v2

.github/workflows/yaml.yml

@@ -27,7 +27,7 @@ jobs:
 
     steps:
     - name: Git checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Install additional packages
       run: |