Bump actions/checkout from 5 to 6 (#69)

Author: dependabot[bot]

.github/workflows/CI.yml

@@ -39,7 +39,7 @@ jobs:
             os: macos-latest
             arch: x64
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
@@ -64,7 +64,7 @@ jobs:
             os: ubuntu-latest
             arch: x64
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}

.github/workflows/CassetteBaseCI.yml

@@ -39,7 +39,7 @@ jobs:
             os: macos-latest
             arch: x64
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}