Update workflows to use artifact actions v4 and update actions/cache from v2 to v4

Signed-off-by: Joyce Quach <jquach@mitre.org>

Author: jtquach1

.github/workflows/deprecated/jekyll-gh-pages.yml

@@ -35,7 +35,7 @@ jobs:
           source: ./
           destination: ./_site
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v1
+        uses: actions/upload-pages-artifact@v4
 
   # Deployment job
   deploy:

.github/workflows/deprecated/password-policy-min-time.yml

@@ -40,14 +40,14 @@ jobs:
           mkdir staging && cp PasswordMinTimePolicy/target/*.jar staging
 
       - name: Set up a cache for Maven
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ~/.m2
           key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
           restore-keys: ${{ runner.os }}-m2
 
       - name: Persist workflow data as artifacts
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: github-actions-artifact
           path: staging