set xmake version 2.8.7

Author: rcitach

.github/workflows/build.yml

@@ -45,15 +45,18 @@ jobs:
           submodules: true
 
       - name: ⬇️ install xmake
-        uses: xmake-io/github-action-setup-xmake@v1
+        shell: bash
+        run: |
+          wget -q https://github.com/xmake-io/xmake/releases/download/v2.8.7/xmake-v2.8.7.gz.run
+          sudo chmod 777 ./xmake-v2.8.7.gz.run
+          ./xmake-v2.8.7.gz.run
 
       - name: 👷 build
         shell: bash
         run: |
           export XMAKE_ROOT=y # Only need to use "--root" in CI
           xmake --version
           source env.sh
-          export RT_XMAKE_LINK_TYPE="static"
           pushd apps
             xmake f -a ${{ matrix.arch }} -vyD
             xmake -j$(nproc) -vyD