fix setting of info log level when trying to detect level from log lines #448

	name: Promtail Windows Test
	on:
	pull_request:
	tags: ['v[0-9].[0-9]+.[0-9]+']
	branches: [main, k*]
	jobs:
	build:
	runs-on: windows-latest
	strategy:
	matrix:
	go-version: [ '1.21.9', '1.22.2' ]
	steps:
	- uses: actions/checkout@v4
	- name: Setup Go ${{ matrix.go-version }}
	uses: actions/setup-go@v4
	with:
	go-version: ${{ matrix.go-version }}
	# You can test your matrix by printing the current Go version
	- name: Display Go version
	run: go version
	- name: Run promtail tests
	run: go test .\clients\pkg\promtail\targets\windows\... -v

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