adding releasr for nodejs

Dockerfile

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+# Container image that runs your code
+FROM ghcr.io/packagrio/packagr:latest-node
+
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+# Code file to execute when the docker container starts up (`entrypoint.sh`)
+ENTRYPOINT ["/entrypoint.sh"]

LICENSE

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+MIT License
+
+Copyright (c) 2020 PackagrIO
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# action-releasr-go
+
+<p align="center">
+  <a href="https://github.com/PackagrIO/docs">
+  <img width="300" alt="portfolio_view" src="https://github.com/PackagrIO/releasr/raw/master/images/releasr.png">
+  </a>
+</p>
+
+Github Action that allows you to commit local changes & tag Go repositories
+
+# Documentation
+Full documentation is available at [PackagrIO/docs](https://github.com/PackagrIO/docs)
+
+# Usage
+
+```yaml
+name: Release
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    container: ghcr.io/packagrio/packagr-dev:master
+    env:
+      PROJECT_PATH: /go/src/github.com/packagrio/publishr
+    steps:
+      # Fetch depth 0 is required for committing changes
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      # ... do your compile, testing, bumpr, etc steps here.
+      - name: Commit Changes
+        id: commit
+        uses: packagrio/action-releasr-node@master
+        env:
+          # This is necessary in order to push a commit to the repo
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # Leave this line unchanged
+
+      # ... do your publishr steps here.
+
+```
+
+# Inputs
+
+# Outputs

VERSION

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+version := "1.0.0"

action.yml

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+name: 'Node Releasr'
+description: 'Github Action that allows you to commit local changes & tag Node repositories'
+inputs:
+  version_metadata_path:
+    description: 'Path to file containing Version string'
+    required: true
+    default: 'package.json'
+  author_name:
+    description: 'Commit Author'
+    required: true
+    default: 'packagrio-bot'
+  author_email:
+    description: 'Commit Author Email'
+    required: true
+    default: 'packagr-io[bot]@users.noreply.github.com'
+  cwd:
+    description: 'Working Directory'
+    required: false
+    default: ''
+runs:
+  using: 'docker'
+  image: 'Dockerfile'
+  env:
+    PACKAGR_VERSION_METADATA_PATH: ${{ inputs.version_metadata_path }}
+    PACKAGR_ENGINE_GIT_AUTHOR_NAME: ${{ inputs.author_name }}
+    PACKAGR_ENGINE_GIT_AUTHOR_EMAIL: ${{ inputs.author_email }}
+    CUSTOM_WORKING_DIRECTORY: ${{ inputs.cwd }}
+branding:
+  icon: 'tag'
+  color: 'blue'

entrypoint.sh

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+#!/usr/bin/env bash
+
+PATH=/srv/packagr:$PATH
+
+# retrieve the latest releasr binary
+asset_url=$(curl -s https://api.github.com/repos/PackagrIO/releasr/releases/latest \
+	| grep browser_download_url | grep 'packagr-releasr-linux-amd64' | cut -d '"' -f 4)
+
+# download the releasr asset here.
+curl -L -o /srv/packagr/packagr-releasr $asset_url
+
+# make releasr executable
+chmod +x /srv/packagr/packagr-releasr
+
+if [[ ! -z "${CUSTOM_WORKING_DIRECTORY}" ]]; then
+  echo "using custom dir: ${CUSTOM_WORKING_DIRECTORY}"
+  cd "${CUSTOM_WORKING_DIRECTORY}"
+fi
+
+echo "Starting Releasr $1"
+packagr-releasr start --scm github --package_type node