CI build using GitHub Actions. (#169)

* GitHub Actions with manual release job

Author: bhamail

.github/CODEOWNERS

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+@sonatype-nexus-community/community-leaders
+@guillermo-varela
+@shaikhu

.github/actions/configure-git/action.yml

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+name: configure-git
+runs:
+  using: composite
+  steps:
+  - name: Configure GIT with user info for pushing
+    run: |-
+      git config user.name "$GITHUB_USERNAME"
+      git config user.email "$GITHUB_EMAIL"
+    shell: bash

.github/actions/setup/action.yml

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+name: setup
+description: Setup Java and Gradle
+runs:
+  using: composite
+  steps:
+    - name: Setup Java
+      uses: actions/setup-java@v4
+      with:
+        distribution: 'temurin'
+        # TODO: Update this to Java 11 after branch `version3` is merged
+        java-version: 8
+    - name: Setup Gradle
+      uses: gradle/actions/setup-gradle@v4

.github/workflows/GITHUBACTIONS-README.md

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+GitHub Actions Notes
+====================
+
+Local Builds
+---------------
+See: [Running GitHub Actions Locally](https://contribute.sonatype.com/docs/how-to/testing-github-actions-locally/).

.github/workflows/ci.yaml

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+# workflow name shown in the Actions tab and PR checks
+name: ci-gha
+
+on:
+  pull_request:
+    branches:
+      - main
+
+  push:
+    branches:
+      - main
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+          fetch-depth: 0
+      - uses: ./.github/actions/setup
+      - name: Build with Gradle
+        run: ./gradlew test --no-daemon --debug --max-workers 2
+
+  it-test:
+    strategy:
+      # might be helpful to limit threads in local builds
+      #max-parallel: 2
+      # TODO: Update this to remove obsolete itX's after branch `version3` is merged
+      matrix:
+        it: [it1, it2, it3, it4, it5, it6, it7, it8]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+          fetch-depth: 0
+      - uses: ./.github/actions/setup
+       # might need to setup NDK for local builds
+#      - uses: nttld/setup-ndk@v1
+#        with:
+#          ndk-version: r28-beta1
+#          link-to-sdk: true
+      - name: Build with Gradle
+        run: ./gradlew test --no-daemon --info ${{ matrix.it }}
+
+  code_quality:
+    name: Code Quality
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v4
+        with:
+          # Disabling shallow clone is recommended for improving relevancy of reporting
+          fetch-depth: 0
+
+      - name: Sonatype Lifecycle Evaluation
+        id: evaluate
+        uses: sonatype/actions/evaluate@v1.0.1
+        with:
+          iq-server-url: ${{ vars.SONATYPE_PLATFORM_URL }}
+          username: ${{ secrets.SONATYPE_LIFECYCLE_USERNAME }}
+          password: ${{ secrets.SONATYPE_LIFECYCLE_PASSWORD }}
+          application-id: 'scan-gradle-plugin'
+          scan-targets: '.'

.github/workflows/release.yml

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+# workflow name shown in the Actions tab and PR checks
+name: release
+
+on:
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  approve-release:
+    environment:
+      name: approval
+    if: github.ref == 'refs/heads/main'
+    runs-on: ubuntu-latest
+    steps:
+      - run: echo 'approved'
+  do-release:
+    if: github.ref == 'refs/heads/main'
+    runs-on: ubuntu-latest
+    needs:
+      - approve-release
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+          fetch-depth: 0
+      - uses: ./.github/actions/setup
+      - uses: ./.github/actions/configure-git
+      - name: Release with Gradle
+        run: ./gradlew clean release -Dorg.gradle.daemon=false --stacktrace -x test -x integrationTest