chore: update Go version to 1.23 and improve security #3

	name: CI

	on:
	push:
	branches: [ main, master, develop ]
	pull_request:
	branches: [ main, master, develop ]

	jobs:
	test:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4

	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: '1.23'

	- name: Cache Go modules
	uses: actions/cache@v3
	with:
	path: ~/go/pkg/mod
	key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
	restore-keys: \|
	${{ runner.os }}-go-

	- name: Download dependencies
	run: go mod download

	- name: Run tests
	run: go test -v -race -coverprofile=coverage.out ./...

	- name: Generate coverage report
	run: go tool cover -html=coverage.out -o coverage.html

	- name: Upload coverage to Codecov
	uses: codecov/codecov-action@v3
	with:
	files: ./coverage.out
	flags: unittests
	name: codecov-umbrella

	lint:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4

	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: '1.23'

	- name: golangci-lint
	uses: golangci/golangci-lint-action@v3
	with:
	version: latest
	args: --timeout=5m

	build:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4

	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: '1.23'

	- name: Build
	run: go build -v ./cmd/server/main.go

	- name: Test build artifact
	run: \|
	mkdir -p data
	timeout 5s ./main \|\| true

	docker:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4

	- name: Build Docker image
	run: docker build -t holidayapi:test .

	- name: Test Docker image
	run: \|
	docker run -d --name holidayapi-test -p 8080:8080 holidayapi:test
	sleep 5
	docker logs holidayapi-test
	docker stop holidayapi-test
	docker rm holidayapi-test

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