downgrade minimum go version and cleanup actions #84

	name: ci

	# Default to 'contents: read', which grants actions to read commits.
	#
	# If any permission is set, any permission not included in the list is
	# implicitly set to "none".
	#
	# see https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#permissions
	permissions:
	contents: read

	on: [push, pull_request]

	jobs:
	test:
	strategy:
	matrix:
	os: [ubuntu, macos, windows]
	# test oldest supported version and currently maintained Go versions.
	golang: ['1.23.x', 'oldstable', 'stable']
	# currently, we cannot run non-x86_64 machines on GitHub Actions cloud env.
	runs-on: ${{ matrix.os }}-latest
	timeout-minutes: 10 # guardrails timeout for the whole job
	env:
	# Setting GOTOOLCHAIN to local tells go
	# to use the bundled Go version rather
	# than fetching the toolchain according to
	# toolchain directive found in go.mod.
	GOTOOLCHAIN: local
	name: CI golang ${{ matrix.golang }} on ${{ matrix.os }}
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-go@v5
	with:
	go-version: ${{ matrix.golang }}
	- name: Test
	run: go test -v -race -cover -covermode=atomic ./fluent
	shell: bash

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