Bump Checkout action to v4

Signed-off-by: Alex Nelson <alexander.nelson@nist.gov>

Author: ajnelson-nist

.github/workflows/case_validate.yml

@@ -15,7 +15,7 @@ jobs:
 
       # Get the code from the repository to be packaged
       - name: Get Repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       # Validate the CASE graphs in the /data/ directory
       - name: CASE Validate

.github/workflows/lint.yml

@@ -15,7 +15,7 @@ jobs:
 
       # Get the code from the repository
       - name: Get Repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       # Install pre-commit and run it
       - name: Pre-commit Checks