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

Generated by renovateBot

Author: renovate[bot]

.github/workflows/buildtest.yaml

@@ -25,7 +25,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - uses: actions/cache@v4
         with:
           path: |

.github/workflows/generate.yaml

@@ -23,7 +23,7 @@ jobs:
   generate:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
 
       - name: Install Protoc
         uses: arduino/setup-protoc@v2

.github/workflows/release.yaml

@@ -12,7 +12,7 @@ jobs:
     name: Release
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Install Protoc
         uses: arduino/setup-protoc@v2