Bump actions libraries version

Author: ethanppl

.github/workflows/check.yml

@@ -46,12 +46,12 @@ jobs:
 
       # Step: Check out the code.
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       # Step: Define how to cache deps. Restores existing cache if present.
       - name: Cache deps
         id: cache-deps
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         env:
           cache-name: cache-elixir-deps
         with:
@@ -65,7 +65,7 @@ jobs:
       # project's downloaded deps every run.
       - name: Cache compiled build
         id: cache-build
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         env:
           cache-name: cache-compiled-build
         with: