Migrate to GH Actions

.github/workflows/check.yml

@@ -0,0 +1,23 @@
+name: Go Check
+on: [push, pull_request]
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go: [1.20.x, 1.21.x, 1.22.x]
+    steps:
+      - name: Setup Go environment
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ matrix.go }}
+          stable: true
+
+      - name: Check out code into the Go module directory
+        uses: actions/checkout@v4
+
+      - name: Get dependencies
+        run: go get -v -t -d ./...
+
+      - name: Test
+        run: go test ./...

.github/workflows/release.yml

@@ -0,0 +1,44 @@
+name: Release
+
+on:
+  workflow_run:
+    workflows: ["Go Check"]
+    types:
+      - completed
+    branches:
+      - master
+
+jobs:
+  release:
+
+    runs-on: ubuntu-latest
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Go environment
+        uses: actions/setup-go@v5
+        with:
+          go-version: 1.22.x
+          stable: true
+
+      - name: Get dependencies
+        run: go get -v -t -d ./...
+
+      - name: Build
+        run: |
+          TAG=$(git describe --tags --abbrev=0)
+          GIT_TAG=$TAG make clean build
+
+      - name: Create release
+        if: startsWith(github.ref, 'refs/tags/v')
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          files: build/*
+          tag: ${{ github.ref }}
+          overwrite: true
+          file_glob: true
+          name: Release ${{ github.ref }}

CODEOWNERS

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+* @gotify/committers