Update SECURITY.md according GeoMapFish support #3274

	name: Clean GitHub pages

	on:
	delete:
	pull_request:
	types:
	- closed

	jobs:
	clean:
	runs-on: ubuntu-22.04
	name: Clean GitHub pages
	timeout-minutes: 5
	concurrency: gh-pages-push

	steps:
	- run: env
	- name: GitHub event
	run: echo ${GITHUB_EVENT} \| python3 -m json.tool
	env:
	GITHUB_EVENT: ${{ toJson(github) }}
	- name: GitHub event file
	run: cat ${GITHUB_EVENT_PATH}

	- uses: actions/checkout@v4
	with:
	ref: gh-pages
	- name: Clean ghpages
	run: \|
	git config --global user.name "Continuous integration"
	git config --global user.email "[email protected]"
	if [ -d $(cat ${GITHUB_EVENT_PATH}\|jq --raw-output .ref) ]
	then
	git rm -r $(cat ${GITHUB_EVENT_PATH}\|jq --raw-output .ref)
	git commit --amend --no-edit
	remote_repo="https://${GITHUB_ACTOR}:${{ github.token }}@github.com/camptocamp/ngeo.git"
	git push "${remote_repo}" gh-pages --force
	fi

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