update checkout step

Signed-off-by: John Seekins <[email protected]>

Author: johnseekins

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-slim
     steps:
       - name: checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: setup python
         run: |
           curl -SsL https://mise.run | bash > /dev/null
@@ -37,7 +37,7 @@ jobs:
     runs-on: ubuntu-slim
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: setup markdownlint
         run: |
           curl -SsL https://mise.run | bash > /dev/null
@@ -53,7 +53,7 @@ jobs:
     runs-on: ubuntu-slim
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: setup yamllint
         run: |
           curl -SsL https://mise.run | bash > /dev/null
@@ -69,7 +69,7 @@ jobs:
     runs-on: ubuntu-slim
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: setup jq
         run: |
           curl -SsL https://mise.run | bash > /dev/null