cache build

.gitea/workflows/linux.yaml

@@ -15,6 +15,13 @@ jobs:
       - name: Check out repository code
         uses: actions/checkout@v3
 
+      - name: Cache Build
+        id: cache-build
+        uses: actions/cache@v4
+        with:
+          path: build
+          key: ${{ runner.os }}-td
+
       - name: Prepare Xmake
         uses: xmake-io/github-action-setup-xmake@v1
         with: