workflows: add building workflow

.github/workflows/build.yml

@@ -0,0 +1,20 @@
+name: Cargo Build & Test
+
+on:
+  push:
+    branches: [ $default-branch ]
+  pull_request:
+    branches: [ $default-branch ]
+
+env: 
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build_and_test:
+    name: dix - latest
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - run: cargo build --verbose
+      - run: cargo test --verbose
+