chore(deps): update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/build-latest-docker-image.yml

@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - name: Checkout and download repository to workflow runner
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Set up docker builder
         uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3.12.0

.github/workflows/build-published-docker-image.yml

@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - name: Checkout and download repository to workflow runner
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Set up docker builder
         uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3.12.0