feat: semconv 1.24 and updated to go 1.21 #36

	name: ci
	on:
	push:
	paths-ignore:
	- "**.md"
	- LICENCE
	branches:
	- master
	pull_request:
	env:
	DEFAULT_GO_VERSION: 1.15
	jobs:
	test-build:
	runs-on: ubuntu-latest
	steps:
	- name: Install Go
	uses: actions/[email protected]
	with:
	go-version: ${{ env.DEFAULT_GO_VERSION }}
	- name: Checkout Repo
	uses: actions/checkout@v2
	- name: Run test
	run: go test ./...
	- name: Build
	run: go build
	- name: Build Examples
	run: \|
	# build basic example
	docker build -f ./examples/basic/Dockerfile .

	# build multi services example
	docker build -f ./examples/multi-services/back-svc/Dockerfile ./examples/multi-services
	docker build -f ./examples/multi-services/front-svc/Dockerfile ./examples/multi-services

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