Add build workflow

.gitea/workflows/build.yml

@@ -0,0 +1,28 @@
+name: Build
+
+on:
+  push:
+  pull_request:
+    branches: [master]
+
+jobs:
+  audit:
+    runs-on: buildenv
+    steps:
+      - uses: actions/checkout@v4
+      - run: hlint src lib test
+
+  test:
+    runs-on: buildenv
+    continue-on-error: true
+    steps:
+      - uses: actions/checkout@v4
+      - run: cabal update
+      - run: cabal test --test-show-details=streaming
+
+  release:
+    runs-on: buildenv
+    steps:
+      - uses: actions/checkout@v4
+      - run: cabal update
+      - run: cabal build