chore: buildjet on test.yml (#10)

* chore: buildjet on test.yml

* remove backend fmt, test and clippy checks from pre-release workflow

---------

Co-authored-by: couscous <couscous@runner.com>

.github/workflows/test.yml

@@ -15,7 +15,7 @@ env:
 
 jobs:
   test:
-    runs-on: ubuntu-latest
+    runs-on: buildjet-4vcpu-ubuntu-2204
     steps:
       - uses: actions/checkout@v4
 
@@ -49,6 +49,7 @@ jobs:
           RUST_CACHE_DEBUG: true
         with:
           workspaces: "backend"
+          cache-provider: "buildjet"
 
       - name: Checks
         run: |