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

Author: renovate[bot]

.github/workflows/go-test.yml

@@ -13,7 +13,7 @@ jobs:
     name: Run all tests
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - uses: pnorton5432/setup-task@v1
       with:

.github/workflows/semgrep.yml

@@ -20,5 +20,5 @@ jobs:
     container:
       image: returntocorp/semgrep
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - run: semgrep ci