Update actions/cache action to v4

Author: renovate[bot]

.github/workflows/build.yml

@@ -19,7 +19,7 @@ jobs:
           registry-url: https://registry.npmjs.org
       - id: cache_npm
         name: Cache Node.js modules
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             ~/.npm

.github/workflows/publish.yml

@@ -23,7 +23,7 @@ jobs:
       # Dependencies
       - id: cache_npm
         name: Cache Node.js modules
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             ~/.npm