chore: remove deprecated action

Author: marcoieni

.github/workflows/ci.yml

@@ -4,9 +4,12 @@ jobs:
   build:
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - run: rustup default ${{ matrix.channel }}
-      - uses: rust-lang/simpleinfra/github-actions/simple-ci@master
+      - name: Build
+        run: cargo build --tests --workspace
+      - name: Test
+        run: cargo test --workspace
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]