ci: setup pnpm from corepack config to avoid flaky lockfile (#1258)

.github/workflows/client-app.yml

@@ -34,7 +34,7 @@ jobs:
       RELEASE_UPLOAD_ID: ${{ steps.create_release.outputs.id }}
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Query version number
         id: get_version
         shell: bash
@@ -72,29 +72,16 @@ jobs:
         run: |
           sudo apt-get update
           sudo apt-get install -y libgtk-3-dev libwebkit2gtk-4.0-dev libappindicator3-dev librsvg2-dev patchelf
+      - name: Install pnpm
+        uses: pnpm/action-setup@v2
       - name: Set up Node.js
         uses: actions/setup-node@v3
         with:
           node-version: 18.x
+          cache: 'pnpm'
       - name: install Rust stable
         uses: dtolnay/rust-toolchain@stable
-      - name: Install pnpm
-        uses: pnpm/action-setup@v2
-        with:
-          version: latest
-      - name: Get pnpm store directory
-        id: pnpm-cache
-        shell: bash
-        run: |
-          echo "STORE_PATH=$(pnpm store path)" >> $GITHUB_OUTPUT
-      - name: Get npm cache directory
-        uses: actions/cache@v3
-        id: cache
-        with:
-          path: ${{ steps.pnpm-cache.outputs.STORE_PATH }}
-          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
-          restore-keys: |
-            ${{ runner.os }}-pnpm-store-
+
       - name: Get rust cache
         uses: Swatinem/rust-cache@v2
         id: rust-cache