Use reusable Rust SDK workflow to build all Rust apps for every PR

Author: yogh333

.github/workflows/build_all_rust_apps.yml

@@ -0,0 +1,11 @@
+name: Build all Rust apps
+
+on:
+  pull_request:
+
+jobs:
+    test_build_rust:
+        name: Build all Rust apps
+        uses: LedgerHQ/ledger-device-rust-sdk/.github/workflows/reusable_build_all_apps.yml@y333/update_ci
+        with:
+            c_sdk_branch: ${{ github.head_ref }}