feat(*): decode api request json body with array metatable #324

# to view logs

	name: Test

	on: [push, pull_request]

	env:
	LIBEXPAT_DOWNLOAD_URL: https://github.com/libexpat/libexpat/releases/download/R_2_5_0/expat-2.5.0.tar.gz

	jobs:

	tests:
	timeout-minutes: ${{ fromJSON(vars.GHA_DEFAULT_TIMEOUT) }}
	name: Busted Tests

	strategy:
	matrix:
	openresty_version:
	- 1.17.8.2
	- 1.19.9.1

	runs-on: ubuntu-latest
	container:
	image: openresty/openresty:${{ matrix.openresty_version }}-alpine-fat
	# --init runs tinit as PID 1 and prevents the 'WARNING: killing the child process' spam from the test suite
	options: --init

	steps:
	- uses: actions/checkout@v2
	- name: Install deps
	run: \|
	apk add --no-cache curl perl bash wget git perl-dev libarchive-tools nodejs jq
	ln -s /usr/bin/bsdtar /usr/bin/tar

	- name: Build libexpat
	if: matrix.openresty_version == '1.17.8.2'
	run: \|
	mkdir -p /tmp/expat
	curl -Ls $LIBEXPAT_DOWNLOAD_URL \| tar -xz --strip-components=1 -f - -C /tmp/expat
	cd /tmp/expat && ./configure && make && make install

	- name: Install libexpat from package manager
	if: matrix.openresty_version == '1.19.9.1'
	run: \|
	apk add --no-cache expat-dev

	- name: Cache
	uses: actions/cache@v2
	with:
	path: \|
	~/.cache
	key: ${{ runner.os }}-${{ matrix.openresty_version }}-cache

	- name: Install Busted
	run: \|
	/usr/local/openresty/luajit/bin/luarocks install busted
	/usr/local/openresty/luajit/bin/luarocks install luatz
	/usr/local/openresty/luajit/bin/luarocks install luasocket

	- uses: actions/checkout@v2

	- name: Run tests
	run: \|
	make dev
	/usr/local/openresty/luajit/bin/luarocks make
	busted

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