[workflow] remove caching for now

.github/workflows/test.yml

@@ -1,4 +1,4 @@
-name: Unit Tests
+name: build
 
 on:
   push:
@@ -17,11 +17,6 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
-    - name: Cache
-      uses: actions/cache@v3.0.8
-      with:
-        path: ~/target
-        key: build.cache
     - name: Build
       run: cargo build --verbose
     - name: Run tests