Bump up version in Github workflow won't change the code - github-actions

Question

I'm using python poetry as package management. For bump up the patch version, I simply run poetry version patch. I moved this function to workflow and it won't change the version string at all!
name: Bump version
on: workflow_dispatch:
inputs:
version:
description: 'Semver type of new version (major / minor / patch)'
required: true
type: choice
options:
- patch
- minor
- major
jobs: bump-version:
runs-on: ubuntu-latest
steps:
- name: checkout repo
uses: actions/checkout#v2.4.0
- name: setup python
uses: actions/setup-python#v2
with:
python-version: '3.x'
architecture: 'x64'
- name: setup poetry
run: |
python -m pip install -U pip
pip install poetry
- name: Setup Git
run: |
git config user.name "${GITHUB_ACTOR}"
git config user.email "${GITHUB_ACTOR}#teamname.com"
- name: bump version
run: poetry version ${{ github.event.inputs.version }} #the action is not update the code
I do have the bump up version step as showing above, however, the version string was kept still after pulled and checked, can someone help me?
Possible reason: Since the workflow needs to checkout (copy the repo) fist, all changes are enter to the copied repo. If so how can I copy back?

Answer 1

As I mentioned, the workflow simulate what you have locally, therefore it checkout first(copy) the solution is after the version bump up just commit and push it
- name: bump up version
run: |
poetry version ${{ github.event.inputs.version }}
git add pyproject.toml
git commit -m "bump up ${{ github.event.inputs.version }} version from workflow"
git push