refactor(dev): make setup explicit and portable

.github/workflows/ci.yml

@@ -78,16 +78,6 @@ jobs:
       - name: Setup
         uses: ./tooling/github/setup
 
-      - name: Set up Go
-        uses: actions/setup-go@v6
-        with:
-          go-version-file: tools/homarr-dev/go.mod
-          cache-dependency-path: tools/homarr-dev/go.sum
-
-      - name: Validate developer CLI
-        working-directory: tools/homarr-dev
-        run: go test -race ./... && go vet ./...
-
       - name: Copy environment defaults
         run: cp .env.example .env