GitHub Action: Release VERSION.txt

Simple GitHub Action to write VERSION.txt and include it in each release.

Note this pushes a new commit to the release branch and force updates the release tag in GitHub (so that the tagged commit contains the new VERSION.txt).

Usage

name: Release

on:
  release:
    types: [published]
    branches: [main]

jobs:
  version:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: BattlesnakeOfficial/action-release-version@v1