Add workflow for integration tests, fix encoding / decoding of managed decimals #3

	name: MultiversX Integration Tests

	on:
	push:
	branches:
	- main
	pull_request:

	jobs:
	integration_tests:
	runs-on: ubuntu-latest

	steps:
	# Step 1: Checkout the repository
	- name: Checkout code
	uses: actions/checkout@v3

	# Step 2: Set up Python environment
	- name: Set up Python 3.x
	uses: actions/setup-python@v4
	with:
	python-version: '3.x'

	# Step 2: Set up Python environment
	- name: Set up pipx
	run: \|
	apt update
	apt install pipx
	pipx ensurepath

	# Step 3: Install mxpy (MultiversX Python SDK)
	- name: Install mxpy (MultiversX SDK)
	run: \|
	pipx install multiversx-sdk-cli --force

	# Step 4: Set up MultiversX localnet using mxpy
	- name: Set up MultiversX localnet
	run: \|
	# Start the local testnet with mxpy
	mkdir -p ~/localnet && cd ~/localnet
	mxpy localnet setup
	mxpy localnet start
	sleep 60 # Allow time for the testnet to fully start

	# Step 5: Verify that testnet is running using mxpy CLI
	- name: Verify localnet running
	run: \|
	mxpy localnet status

	# Step 6: Install Node.js and dependencies
	- name: Set up Node.js environment
	uses: actions/setup-node@v3
	with:
	node-version: '16.x'

	- name: Install Node.js dependencies
	run: npm install

	# Step 7: Run integration tests
	- name: Run integration tests
	run: \|
	npm run tests-localnet

	# Step 8: Stop the testnet
	- name: Stop MultiversX local localnet
	if: success() \|\| failure()
	run: \|
	mxpy localnet stop

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