feat: add armv7 support

.github/workflows/release.yml

@@ -25,6 +25,13 @@ jobs:
       with:
         fetch-depth: 0
 
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v1
+
+    - name: Set up Docker Buildx
+      id: buildx
+      uses: docker/setup-buildx-action@v1
+
     # https://github.community/t5/GitHub-Actions/How-to-get-just-the-tag-name/m-p/32167/highlight/true#M1027
     - name: Print Go version and environment
       id: vars