Update actions/checkout action to v4.3.1

Author: renovate[bot]

.github/workflows/metrics.yaml

@@ -26,7 +26,7 @@ jobs:
       app_followup_svg: metrics/followup/app_followup.svg
     steps:
       - name: 📚 Git Checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v4.0.0
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
         with:
           submodules: recursive
           clean: true
@@ -73,7 +73,7 @@ jobs:
       projects_svg: metrics/projects/projects.svg
     steps:
       - name: 📚 Git Checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v4.0.0
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
         with:
           submodules: recursive
           clean: true