Bump actions/checkout from 5 to 6 (#683)

Author: dependabot[bot]

.github/workflows/CI.yml

@@ -38,7 +38,7 @@ 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 }}

.github/workflows/IntegrationTest.yml

@@ -19,7 +19,7 @@ jobs:
           - {user: timholy, repo: SnoopCompile.jl}
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.julia-version }}
@@ -29,7 +29,7 @@ jobs:
         run: 'using Pkg; Pkg.develop(path=joinpath(pwd(), "TypedSyntax"))'
       - uses: julia-actions/julia-buildpkg@latest
       - name: Clone Downstream
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: ${{ matrix.package.user }}/${{ matrix.package.repo }}
           path: downstream

.github/workflows/TypedSyntaxCI.yml

@@ -23,7 +23,7 @@ jobs:
           - x64
           - x86
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}