[Cherry-Pick] add a new gitaction to verify odh-model-controller image tag per branch #1

	name: Check ODH Model Controller Image Tag

	on:
	pull_request:
	branches: [main, release*]
	paths:
	- "config/base/params.env"

	jobs:
	check-image-tag:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout PR branch
	uses: actions/checkout@v2

	- name: Extract image tag from PR branch
	id: extract-pr
	run: \|
	IMAGE_TAG=$(grep '^odh-model-controller' config/base/params.env \| cut -d '=' -f 2 \| cut -d ':' -f 2 \| tr -d ' ')
	echo "PR_IMAGE_TAG=$IMAGE_TAG" >> $GITHUB_ENV

	- name: Compare image tags
	id: compare-tags
	run: \|
	if [ "${{ github.base_ref }}" == "main" ]; then
	EXPECTED_TAG="fast"
	elif [[ "${{ github.base_ref }}" =~ ^release-(.*) ]]; then
	VERSION=${BASH_REMATCH[1]}
	EXPECTED_TAG="v$VERSION"
	else
	echo "Unknown destination branch: ${{ github.base_ref }}"
	exit 1
	fi

	# Check if PR_IMAGE_TAG matches EXPECTED_TAG followed by a dot and digits
	PR_IMAGE_TAG=${{ env.PR_IMAGE_TAG }}
	if [[ ! "$PR_IMAGE_TAG" =~ ^"$EXPECTED_TAG"(\.[0-9]+)?$ ]]; then
	echo "Image tag mismatch! Expected '$EXPECTED_TAG' but found '$PR_IMAGE_TAG'"
	exit 1
	fi

	echo "Image tag('$PR_IMAGE_TAG') is correct."

Provide feedback