fix insert operation return types #832

	name: ci

	on: [push, pull_request]

	jobs:
	build:
	name: ubuntu-latest
	runs-on: ubuntu-latest
	timeout-minutes: 60

	strategy:
	matrix:
	mongo: ["4.0", "4.2", "4.4", "5.0", "6.0"]
	steps:
	- name: Setup Environment
	run: \|
	git config --global core.autocrlf false
	git config --global core.eol lf

	- name: Clone repository
	uses: actions/checkout@v2

	- name: Install Deno
	uses: denolib/setup-deno@master
	with:
	deno-version: 1.x.x

	- name: Log versions
	run: \|
	deno --version

	# Lint & Format
	- name: Lint & Format TS
	run: \|
	deno lint --ignore=./bson/bson.d.ts
	deno fmt --check

	# Start MongoDB
	- name: Start MongoDB (Linux)
	uses: wbari/start-mongoDB@v0.2
	with:
	mongoDBVersion: ${{ matrix.mongo }}

	# Tests
	- name: Test TS
	run: deno test -A

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