Update actions/checkout action to v6.0.2

Author: renovate[bot]

.github/workflows/lint.yml

@@ -10,5 +10,5 @@ jobs:
     name: lint workflow files
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: docker://rhysd/actionlint:latest@sha256:ef8299f97635c4c30e2298f48f30763ab782a4ad2c95b744649439a039421e36

.github/workflows/test.yml

@@ -17,7 +17,7 @@ jobs:
           - ubuntu-24.04
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - run: rm -f ~/.bash{_logout,_profile,rc} ~/.docker/config.json ~/.gitconfig ~/.profile
       - run: make deploy
       - run: make test
@@ -26,7 +26,7 @@ jobs:
     name: shellcheck
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: docker://koalaman/shellcheck:stable@sha256:bb596a0d169b85ddd81d8b6d3a2ff6d5baf5fca10b97f575ebc647c3dff62b3d
         with:
           args: >