Font isn't loaded on v2.11.0

## Issue
On v2.10.2 the follwing snippet was printing the text as expected and no warning was shown. On v2.11.0 warning is printed and the text isn't draw with the declared font. Seems like the problem only happens with fonts that aren't installed on the system.

## Steps to Reproduce

```js
registerFont("./BLADRMF.ttf", { family: "Blade" });
const canvas = createCanvas(200, 200);
const ctx = canvas.getContext("2d");
ctx.font = "20px 'Blade'";
ctx.fillText("Testing", 0, 0);
// etc.
```

Desired beheavior:
No warning and text drawn with the set font.

Actual behavior:

```
(process:13200): Pango-WARNING **: 22:36:14.818: couldn't load font "Blade Runner Movie Font Not-Rotated 20px", falling back to "Sans Not-Rotated 20px", expect ugly output.
```
And text drawn with fallback font.

## Your Environment
* Version of node-canvas (output of `npm list canvas` or `yarn list canvas`): v2.11.0
* Environment (e.g. node 4.2.0 on Mac OS X 10.8): node v16.13.0 on Windows 10 Pro 19045.2486

Start by running the provided registerFont/createCanvas snippet with node-canvas v2.11.0 on the reported Windows environment and compare it with v2.10.2. Trace the registered-font lookup and the Pango warning, then verify that the declared Blade font renders without a fallback warning.

Written by the indexing model from the issue text.