[ruby/rack] Use java_tune.sh script for rack-jruby #979

	name: get-maintainers
	on:
	pull_request:
	types: [opened, reopened]
	permissions:
	pull-requests: write
	jobs:
	get_maintainers:
	runs-on: ubuntu-22.04
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 10
	- name: Get commit branch and commit message from PR
	run: \|
	echo "BRANCH_NAME=$GITHUB_HEAD_REF" >> $GITHUB_ENV
	echo "TARGET_BRANCH_NAME=$(echo ${GITHUB_BASE_REF##*/})" >> $GITHUB_ENV
	echo "COMMIT_MESSAGE<<EOF" >> $GITHUB_ENV
	echo "$(git log --format=%B -n 1 HEAD^2)" >> $GITHUB_ENV
	echo "EOF" >> $GITHUB_ENV
	echo "PREVIOUS_COMMIT=$(git log --format=%H -n 1 HEAD^2~1)" >> $GITHUB_ENV
	- uses: actions/setup-python@v5
	with:
	python-version: '3.10'
	architecture: 'x64'
	- name: Save PR number
	run: \|
	mkdir -p ./maintainers
	echo ${{ github.event.number }} > ./maintainers/NR
	- name: Get Maintainers
	run: \|
	python ./toolset/github_actions/get_maintainers.py > ./maintainers/maintainers.md
	- name: Save Maintainers
	uses: actions/upload-artifact@v4
	with:
	name: maintainers
	path: maintainers/

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