ci: cache musl library in docker build workflow (#6392)

* ci: add musl libs into action cache

* build: update Dockerfile.ci

.github/workflows/build_docker.yml

@@ -32,10 +32,21 @@ jobs:
           flavor: |
             suffix=-ffmpeg,onlatest=true
 
-      - uses: actions/setup-go@v4
+      - uses: actions/setup-go@v5
         with:
           go-version: 'stable'
 
+      - name: Cache Musl
+        id: cache-musl
+        uses: actions/cache@v4
+        with:
+          path: build/musl-libs
+          key: docker-musl-libs
+
+      - name: Download Musl Library
+        if: steps.cache-musl.outputs.cache-hit != 'true'
+        run: bash build.sh prepare docker-multiplatform
+
       - name: Build go binary
         run: bash build.sh dev docker-multiplatform
 

.github/workflows/release_docker.yml

@@ -13,10 +13,21 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - uses: actions/setup-go@v4
+      - uses: actions/setup-go@v5
         with:
           go-version: 'stable'
 
+      - name: Cache Musl
+        id: cache-musl
+        uses: actions/cache@v4
+        with:
+          path: build/musl-libs
+          key: docker-musl-libs
+
+      - name: Download Musl Library
+        if: steps.cache-musl.outputs.cache-hit != 'true'
+        run: bash build.sh prepare docker-multiplatform
+
       - name: Build go binary
         run: bash build.sh release docker-multiplatform