chore(deps): update actions/checkout action to v4

Author: renovate[bot]

.github/workflows/images-to-aws-s3.yml

@@ -14,5 +14,5 @@ jobs:
       run:
         working-directory: images-to-aws-s3
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - run: sam build

.github/workflows/lint.yml

@@ -9,7 +9,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - uses: github/super-linter/slim@v5

.github/workflows/telemetry-to-aws-iot-core.yml

@@ -14,6 +14,6 @@ jobs:
       run:
         working-directory: telemetry-to-aws-iot-core
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - run: pip install --upgrade pip cfn-lint
       - run: cfn-lint template.yaml