Clean up temporary home directory to make tests more robust (backport… #16013

	name: Ubuntu CI

	on:
	pull_request:
	push:
	branches:
	- 'ign-gazebo[0-9]'
	- 'gz-sim[0-9]?'
	- 'main'

	jobs:
	bionic-ci:
	runs-on: ubuntu-latest
	name: Ubuntu Bionic CI
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	- name: Compile and test
	id: ci
	uses: ignition-tooling/action-ignition-ci@bionic
	with:
	codecov-enabled: true
	cmake-args: "-DCMAKE_INSTALL_PREFIX=/usr"
	focal-ci:
	runs-on: ubuntu-latest
	name: Ubuntu Focal CI
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	- name: Compile and test
	id: ci
	uses: ignition-tooling/action-ignition-ci@focal
	with:
	cmake-args: "-DCMAKE_INSTALL_PREFIX=/usr"
	jammy-ci:
	runs-on: ubuntu-latest
	name: Ubuntu Jammy CI
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	- name: Compile and test
	id: ci
	uses: ignition-tooling/action-ignition-ci@jammy
	with:
	# per bug https://github.com/ignitionrobotics/ign-gazebo/issues/1409
	cmake-args: '-DCMAKE_INSTALL_PREFIX=/usr -DBUILD_DOCS=OFF'

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