Update Rust before running end-to-end tests

.github/workflows/desktop-e2e.yml

@@ -270,6 +270,11 @@ jobs:
           node-version-file: gui/package.json
           cache: 'npm'
           cache-dependency-path: gui/package-lock.json
+      - name: Install Rust
+        uses: actions-rs/[email protected]
+        with:
+          toolchain: stable
+          default: true
       - name: Build app
         run: ./build.sh
       - name: Build test executable

test/scripts/ci-runtests.sh

@@ -13,6 +13,12 @@ fi
 
 TEST_OS=$1
 
+if [[ "$(uname -s)" == "Darwin" ]]; then
+    # NOTE: We only do this on macOS since we use containers otherwise
+    echo "Updating Rust toolchain"
+    rustup update
+fi
+
 # shellcheck source=test/scripts/test-utils.sh
 source "test-utils.sh"