Updated regex used for tag spec in docker build workflow. #70

	name: Docker Build and Push

	on:
	push:
	tags:
	- "[0-9]+.[0-9]+.[0-9]+([-]\\S*)?"

	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: ${{ github.repository }}
	IMAGE_TAG: ${{ github.ref_name }}

	jobs:
	build-and-push:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Repository
	uses: actions/checkout@v4

	- name: Log in to Docker Registry
	uses: docker/login-action@v3
	with:
	registry: ghcr.io # replace with your registry if different
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Build and Push tagged Docker image
	id: build-tag-push-latest
	uses: docker/build-push-action@v6
	with:
	context: .
	file: ./Dockerfile
	push: true
	tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}/unity-portal-application:${{ env.IMAGE_TAG }}

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