Fix deprecated GitHub Actions versions

- Update actions/cache from v3 to v4
- Update actions/upload-artifact from v3 to v4
- Resolves CI failure due to deprecated action versions

Co-Authored-By: Alec Fong <[email protected]>

Author: devin-ai-integration[bot]

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ jobs:
         go-version: '1.23.0'
 
     - name: Cache Go modules
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: |
           ~/.cache/go-build
@@ -42,7 +42,7 @@ jobs:
       run: make test-coverage
 
     - name: Upload coverage reports
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: coverage-report
         path: coverage/
@@ -63,7 +63,7 @@ jobs:
         go-version: '1.23.0'
 
     - name: Cache Go modules
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: |
           ~/.cache/go-build
@@ -79,7 +79,7 @@ jobs:
       run: make build-${{ matrix.target }}
 
     - name: Upload build artifacts
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: build-${{ matrix.target }}
         path: build/