core/sched.c: fix _runqueue_pop() removing wrong thread #26641

	name: static-tests

	on:
	push:
	branches:
	- master
	- staging
	- trying
	tags:
	- '[0-9][0-9][0-9][0-9].[0-9][0-9]-RC[0-9]*'
	- '[0-9][0-9][0-9][0-9].[0-9][0-9]'
	- '[0-9][0-9][0-9][0-9].[0-9][0-9].*'
	pull_request:
	branches:
	- '*'
	merge_group:

	jobs:
	static-tests:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@main
	with:
	fetch-depth: 0
	- name: set CI_BASE_BRANCH
	run: \|
	if [ -n "${{ github.base_ref }}" ]; then
	echo "CI_BASE_BRANCH=${{ github.base_ref }}" >> $GITHUB_ENV
	elif [ -n "${{ github.event.merge_group.base_ref }}" ]; then
	echo "CI_BASE_BRANCH=${{ github.event.merge_group.base_ref }}" \| sed s.=refs/heads/.=. >> $GITHUB_ENV
	fi
	- name: Setup git
	run: \|
	# Note: CI_BASE_BRANCH is empty when not in a PR
	if [ -n "${CI_BASE_BRANCH}" ]; then
	git fetch origin ${CI_BASE_BRANCH}:${CI_BASE_BRANCH} --no-tags
	else
	git config diff.renameLimit 16384
	fi
	git config apply.whitespace nowarn
	- name: Fetch riot/static-test-tools Docker image
	run: docker pull riot/static-test-tools:latest
	- name: Run static-tests
	run: \|
	# Note: ${CI_BASE_BRANCH} is empty when not in a PR
	docker run --rm \
	-e CI_BASE_BRANCH \
	-e GITHUB_RUN_ID=${GITHUB_RUN_ID} \
	-v $(pwd):/data/riotbuild \
	riot/static-test-tools:latest \
	make static-test

Provide feedback