fix update snapshot assignment to merge existing values instead of ov… #233

	name: Reassure Performance Tests

	on:
	pull_request:
	types: [opened, synchronize]
	branches-ignore: [staging, production]
	paths-ignore: [tests/, '.md', '**.sh']
	jobs:
	perf-tests:
	if: ${{ github.actor != 'OSBotify' }}
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Setup Node
	uses: actions/setup-node@v4
	with:
	node-version-file: '.nvmrc'

	- name: Set dummy git credentials
	run: \|
	git config --global user.email "[email protected]"
	git config --global user.name "Test"
	- name: Run performance testing script
	shell: bash
	run: \|
	set -e
	BASELINE_BRANCH=${BASELINE_BRANCH:="main"}
	git fetch origin "$BASELINE_BRANCH" --no-tags --depth=1
	git switch "$BASELINE_BRANCH"
	npm install --force
	npm install reassure
	npx reassure --baseline
	git switch --force --detach -
	npm install --force
	npm install reassure
	npx reassure --branch
	- name: Validate output.json
	id: validateReassureOutput
	uses: ./.github/actions/validateReassureOutput
	with:
	DURATION_DEVIATION_PERCENTAGE: 20

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