Resizing canvas only partially clears Context settings

## Issue or Feature

When I call `ctx.measureText()` several values like `ctx.lineWidth`, `ctx.fillStyle`, and `ctx.font` (but only the font size?) appear to be reset entirely. I need to set these values again afterwards in order for things to function as expected. I tried to `ctx.save()` the values and `ctx.restore()` them after, but that didn't work.
## Steps to Reproduce

```js
const Canvas = require("canvas");
const canvas = Canvas.createCanvas(1, 1);
const ctx = canvas.getContext("2d");
const text = "Hello World";
ctx.font = "32px serif";
ctx.fillStyle = "white";
const metrics = ctx.measureText(text);
canvas.width = metrics.width;
canvas.height = metrics.actualBoundingBoxAscent + metrics.actualBoundingBoxDescent;
ctx.fillText(text, 0, metrics.actualBoundingBoxAscent);
```
The canvas is resized correctly, but the filled text in this example isn't 32px, nor is it white.

## Your Environment
* Version of node-canvas (output of `npm list canvas` or `yarn list canvas`): 2.6.1
* Environment (e.g. node 4.2.0 on Mac OS X 10.8): Node.js v14.5.0 on both Ubuntu 18 and Windows 10.

Start by running the supplied Node.js reproduction and observe the context after assigning canvas.width and canvas.height following ctx.measureText(). Trace the resize path and verify the resulting behavior of ctx.font, ctx.fillStyle, ctx.lineWidth, and fillText; done means the reported settings behave consistently after resizing, with regression coverage for the example.

Written by the indexing model from the issue text.