imp: add go.mod for 07-celestia #3

	name: Celestia Light-Client
	# This workflow runs when a PR is opened that targets code that is part of the 07-celestia module.
	on:
	pull_request:
	paths:
	- '.github/workflows/celestia-client.yml'
	- 'modules/light-clients/07-celestia/**'
	- 'proto/ibc/lightclients/celestia/**'
	push:
	branches:
	- main
	permissions:
	contents: read

	jobs:
	lint:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/setup-go@v5
	with:
	go-version: '1.21'
	- uses: actions/checkout@v4
	- uses: golangci/[email protected]
	with:
	version: v1.54.2
	args: --timeout 10m
	working-directory: modules/light-clients/07-celestia

	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	go-arch: ['amd64', 'arm', 'arm64']
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-go@v5
	with:
	go-version: '1.21'
	- name: Build celestia-client
	run: \|
	cd modules/light-clients/07-celestia
	GOARCH=${{ matrix.go-arch }} go build ./...

	tests:
	if: github.event.pull_request.head.repo.full_name == github.repository && github.actor != 'dependabot[bot]'
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-go@v5
	with:
	go-version: '1.21'
	- name: Go Test
	run: \|
	cd modules/light-clients/07-celestia
	go test -v -mod=readonly ./...
	- name: sonarcloud
	if: ${{ env.GIT_DIFF && !github.event.pull_request.draft && env.SONAR_TOKEN != null }}
	uses: SonarSource/[email protected]
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
	with:
	projectBaseDir: modules/light-clients/07-celestia

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