Update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/docker-push.yml

@@ -13,7 +13,7 @@ jobs:
   build-and-push:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: Set tag var
         id: tagvars
         run: |

.github/workflows/rust.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - uses: actions/cache@9b0c1fce7a93df8e3bb8926b0d6e9d89e92f20a7 # tag=v3.0.11
         with:
           path: |