fix: Modify SpanExporter trait to use immutable references for shutdown and force_flush methods #6669

	name: integration tests
	env:
	CI: true
	on:
	pull_request:
	types: [ labeled, synchronize, opened, reopened ]

	permissions:
	contents: read

	jobs:
	integration_tests:
	runs-on: ubuntu-latest
	timeout-minutes: 10
	steps:
	- name: Harden the runner (Audit all outbound calls)
	uses: step-security/harden-runner@6c439dc8bdf85cadbbce9ed30d1c7b959517bc49 # v2.12.2
	with:
	egress-policy: audit

	- name: Free disk space
	run: \|
	df -h
	sudo rm -rf /usr/local/lib/android
	sudo rm -rf /usr/share/dotnet
	df -h
	- uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
	with:
	submodules: true
	- uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b
	with:
	toolchain: stable
	components: rustfmt
	- uses: arduino/setup-protoc@c65c819552d16ad3c9b72d9dfd5ba5237b9c906b # v3.0.0
	with:
	repo-token: ${{ secrets.GITHUB_TOKEN }}
	- name: Run integration tests
	run: ./scripts/integration_tests.sh

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