Fix for release workflow #28

	name: Release

	on:
	push:
	tags:
	- 'v*'

	jobs:
	build-release:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v3

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.11'

	- name: Install dependencies
	run: \|
	pip install -r requirements.txt

	- name: Train model
	run: python src/train.py

	- name: Build docker image
	run: docker build -t ghcr.io/${{ github.repository }}:${{ github.ref_name }} .

	- name: Login to GHCR
	uses: docker/login-action@v3
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Push image
	run: docker push ghcr.io/${{ github.repository }}:${{ github.ref_name }}

	- name: Read Metrics
	id: metrics
	shell: bash
	run: \|
	METRICS=$(jq -c . model/metrics.json)
	echo "metrics=$METRICS" >> $GITHUB_OUTPUT

	- name: Read Changelog
	id: changelog
	shell: bash
	run: \|
	delimiter="CHANGELOG_EOF"
	echo "changelog<<$delimiter" >> $GITHUB_OUTPUT
	cat CHANGELOG.md >> $GITHUB_OUTPUT
	echo "$delimiter" >> $GITHUB_OUTPUT

	- name: Publish release
	uses: softprops/action-gh-release@v2
	with:
	files: \|
	model/metrics.json
	generate_release_notes: true
	body: \|
	# Release ${{ github.ref_name }}

	## Model Performance
	- RMSE (Test Set): ${{ fromJson(steps.metrics.outputs.metrics).rmse }}
	- R² Score: ${{ fromJson(steps.metrics.outputs.metrics).r2 }}

	## Changelog
	${{ steps.changelog.outputs.changelog }}

	## Technical Details
	- Python 3.11
	- Docker image available at: ghcr.io/${{ github.repository }}:${{ github.ref_name }}

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