Add more release workflows

Author: colebemis

.github/workflows/release.yml

@@ -0,0 +1,34 @@
+name: Release
+on:
+  push:
+    branches:
+      - main
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+        with:
+          # This makes Actions fetch all Git history so that Changesets can generate changelogs with the correct commits
+          fetch-depth: 0
+          persist-credentials: false
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v2
+        with:
+          node-version: 14
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Create release pull request or publish to npm
+        id: changesets
+        uses: changesets/action@master
+        with:
+          title: Release Tracking
+          # This expects you to have a script called release which does a build for your packages and calls changeset publish
+          publish: npm run release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GPR_AUTH_TOKEN_SHARED }}
+          NPM_TOKEN: ${{ secrets.NPM_AUTH_TOKEN_SHARED }}

.github/workflows/release_candidate.yml

@@ -0,0 +1,59 @@
+name: Release (candidate)
+on:
+  push:
+    branches:
+      - 'changeset-release/main'
+
+jobs:
+  release:
+    if: ${{ github.repository == 'primer/eslint-plugin-primer-react' }}
+
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+        with:
+          # This makes Actions fetch all Git history so that Changesets can generate changelogs with the correct commits
+          fetch-depth: 0
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v2
+        with:
+          node-version: 14.x
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build
+        run: npm run build --if-present
+
+      - name: Create .npmrc
+        run: |
+          cat << EOF > "$HOME/.npmrc"
+            //registry.npmjs.org/:_authToken=$NPM_TOKEN
+          EOF
+        env:
+          NPM_TOKEN: ${{ secrets.NPM_AUTH_TOKEN_SHARED }}
+
+      - name: Publish release candidate
+        run: |
+          version=$(jq -r .version package.json)
+          echo "$( jq ".version = \"$(echo $version)-rc.$(git rev-parse --short HEAD)\"" package.json )" > package.json
+          yarn publish --tag next
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Output release candidate version number
+        uses: actions/[email protected]
+        with:
+          script: |
+            const package = require(`${process.env.GITHUB_WORKSPACE}/package.json`)
+            github.repos.createCommitStatus({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              sha: context.sha,
+              state: 'success',
+              context: `Published ${package.name}`,
+              description: package.version,
+              target_url: `https://unpkg.com/${package.name}@${package.version}/`
+            })