Remove leftover GitHub Actions CI workflow (Forgejo is now canonical CI; GitHub is a pure mirror target)

.github/workflows/ci.yml

@@ -1,42 +0,0 @@
-name: CI
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-jobs:
-  build-and-test:
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [ubuntu-latest, macos-latest]
-        rust: [stable]
-    runs-on: ${{ matrix.os }}
-    steps:
-      - uses: actions/checkout@v4
-      - name: Install Rust
-        uses: dtolnay/rust-toolchain@v1
-        with:
-          toolchain: ${{ matrix.rust }}
-      - name: Cargo cache
-        uses: Swatinem/rust-cache@v2
-        with:
-          workspaces: |
-            . -> target
-      - name: Build
-        run: cargo build --workspace --verbose
-      - name: Run tests
-        run: cargo test --workspace --verbose
-      - name: Build release
-        run: cargo build --workspace --release
-      - name: Package artifacts
-        run: |
-          mkdir -p dist
-          tar -czf dist/bread-${{ matrix.os }}.tgz target/release/breadd target/release/bread-cli
-      - name: Upload artifacts
-        uses: actions/upload-artifact@v4
-        with:
-          name: bread-${{ matrix.os }}
-          path: dist/*.tgz