Update GitHub Actions workflow to trigger on pushes to the main branch #1547

	name: CI
	on: [push, pull_request]
	jobs:
	build:
	name: Build
	runs-on: ubuntu-latest
	strategy:
	matrix:
	go: ["1.21", "1.22", "1.23"]
	steps:
	- name: Set up Go ${{ matrix.go }}
	uses: actions/setup-go@v4
	with:
	go-version: ${{ matrix.go }}
	id: go

	- name: Check out code into the Go module directory
	uses: actions/checkout@v3

	- name: Get dependencies
	run: \|
	go get -v -t -d ./...
	if [ -f Gopkg.toml ]; then
	curl https://raw.githubusercontent.com/golang/dep/master/install.sh \| sh
	dep ensure
	fi
	- name: Build
	run: go build -v .
	- name: Library unit-test
	run: go test lib/*

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