Bump CI to actions/checkout@v7

Author: michaelblyons

.github/workflows/package-control-reviewer.yml

@@ -8,7 +8,7 @@ jobs:
   package-review:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Review this package repository
         uses: kaste/st_package_reviewer/gh_action_package@v1

.github/workflows/syntax.yml

@@ -31,7 +31,7 @@ jobs:
           - build: 4185  # Required for symbol transformation tests
             packages: v4193  # Bash rewrite
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - uses: SublimeText/syntax-test-action@v2
         with:
           build: ${{ matrix.build }}