add tests for matching feature + issues fixes #470

	name: bench go

	on:
	push:
	paths-ignore:
	- 'docs/**'
	- 'README.md'
	branches:
	- main
	pull_request:
	paths-ignore:
	- 'docs/**'
	- 'README.md'
	branches:
	- main

	permissions:
	contents: read

	jobs:
	dev:
	strategy:
	matrix:
	os-version: ['ubuntu-22.04' ]
	go-version: [ '1.21', '1.22' ]
	runs-on: ${{ matrix.os-version }}

	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-go@v5
	with:
	go-version: ${{ matrix.go-version }}

	- name: Show Go version
	run: \|
	go version
	sudo go version

	- name: Set up Go for root
	if: runner.os != 'macOS'
	run: \|
	which go
	sudo which go
	sudo ln -sf `which go` `sudo which go` \|\| true

	- name: Show Go version
	run: \|
	go version
	sudo go version

	- name: Bench dnsutils
	run: \|
	cd dnsutils/
	go test -benchmem -run=^$ -bench=.

	- name: Bench transformers
	run: \|
	cd transformers/
	go test -benchmem -run=^$ -bench=^BenchmarkUserPrivacy.\\|BenchmarkTransforms.\\|BenchmarkNormalize.*$

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