Decref the reference to the type held by an instance when deallocating an instance of an extension type #4960

	# This runs as a separate job because it needs to run on the `pull_request_target` event
	# in order to access the CODECOV_TOKEN secret.
	#
	# This is safe because this doesn't run arbitrary code from PRs.

	name: Set Codecov PR base
	on:
	# See safety note / doc at the top of this file.
	pull_request_target:

	jobs:
	coverage-pr-base:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v7.0.1
	- uses: actions/setup-python@v7
	with:
	python-version: '3.14'
	- name: Fetch merge base
	id: fetch_merge_base
	uses: ./.github/actions/fetch-merge-base
	with:
	base_ref: "refs/heads/${{ github.event.pull_request.base.ref }}"
	head_ref: "refs/pull/${{ github.event.pull_request.number }}/head"
	- name: Set PR base on codecov
	run: \|
	pip install codecov-cli
	codecovcli pr-base-picking \
	--base-sha ${{ steps.fetch_merge_base.outputs.merge_base }} \
	--pr ${{ github.event.number }} \
	--slug PyO3/pyo3 \
	--token ${{ secrets.CODECOV_TOKEN }} \
	--service github

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