ci: Add multi-platform release workflow with GitHub Actions

.github/workflows/rust.yml

@@ -3,6 +3,8 @@ name: Rust
 on:
   push:
     branches: [ "main" ]
+    tags:
+      - v[0-9]+.*
   pull_request:
     branches: [ "main" ]
 
@@ -39,3 +41,39 @@ jobs:
       run: cargo clippy -- -D warnings
     - name: Check formatting
       run: cargo fmt -- --check
+
+  create-release:
+    if: startsWith(github.ref, 'refs/tags/')
+    permissions:
+      contents: write
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: taiki-e/create-gh-release-action@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+  upload-assets:
+    if: startsWith(github.ref, 'refs/tags/')
+    needs: create-release
+    permissions:
+      contents: write
+    strategy:
+      matrix:
+        include:
+          - target: x86_64-unknown-linux-gnu
+            os: ubuntu-latest
+          - target: x86_64-apple-darwin
+            os: macos-latest
+          - target: x86_64-pc-windows-msvc
+            os: windows-latest
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: taiki-e/upload-rust-binary-action@v1.27.0
+        with:
+          bin: noentropy
+          target: ${{ matrix.target }}
+          tar: unix
+          zip: windows
+          token: ${{ secrets.GITHUB_TOKEN }}