Add nil checks for pkgConn and PackagesList #4

	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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	# limitations under the License.
	name: Post Merge Actions

	on:
	push:
	branches:
	- main
	permissions:
	contents: read

	jobs:
	integration-merge-test:
	# if: github.event_name == 'pull_request' && github.event.action == 'closed' && github.event.pull_request.merged
	runs-on: ubuntu-latest
	name: CI for Integration Merge Test
	steps:
	- name: Checkout code
	uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # tag=v3
	- name: setup-go
	uses: actions/setup-go@cdcb36043654635271a94b9a6d1392de5bb323a7 # tag=v3.2.1
	with:
	go-version: '1.21'
	- uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
	with:
	path: ~/go/pkg/mod
	key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
	- name: Setup the project
	run: go mod download
	- name: Install atlas
	uses: ariga/setup-atlas@v0
	- name: Run integration merge test
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	GITHUB_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	run: make integration-merge-test

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