chore(SA-675): update deprecated GitHub Actions to v4

- actions/checkout: v3.5.2 → v4.2.2
- actions/setup-node: v3.6.0 → v4.1.0
- actions/cache: v3.3.1 → v4.2.3

Fixes CI failure due to deprecated actions/cache version being blocked
by GitHub as of Dec 2024.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: gjarzebak95

.github/workflows/ci.yml

@@ -14,13 +14,13 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
-      - uses: actions/setup-node@64ed1c7eab4cce3362f8c340dee64e5eaeef8f7c # v3.6.0
+      - uses: actions/setup-node@39370e3970a6d050c480ffad4ff0ed4d3fdee5af # v4.1.0
         with:
           node-version: 18.20.0
 
-      - uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
+      - uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
         with:
           path: node_modules
           key: npm-${{ hashFiles('package-lock.json') }}