Update path to test cache

Author: bkeepers

.github/workflows/test.yml

@@ -26,7 +26,7 @@ jobs:
         id: test-cache
         uses: actions/cache@v4
         with:
-          path: .test-cache
+          path: packages/tide-predictor/.test-cache
           key: ${{ runner.os }}-test-cache
 
       - name: Test build