chore(deps): update dependency canvas to ^2.8.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
canvas	^2.6.1 -> ^2.8.0

---

Release Notes

Automattic/node-canvas

### [`v2.8.0`](https://togithub.com/Automattic/node-canvas/blob/master/CHANGELOG.md#​280) [Compare Source](https://togithub.com/Automattic/node-canvas/compare/v2.7.0...v2.8.0) \================== ##### Changed - Upgrade dtslint - Upgrade node-pre-gyp to 1.0.0. Note that if you are using special node-pre-gyp features like `node_pre_gyp_accessKeyId`, you may need to make changes to your installation procedure. See https://github.com/mapbox/node-pre-gyp/blob/master/CHANGELOG.md#​100. - Add Node.js v16 to CI. - The C++ class method `nBytes()` now returns a size_t. (Because this is a C++ method only, this is not considered a breaking change.) - Export type NodeCanvasRenderingContext2D so you can pass the current context to functions (TypeScript). ##### Added - Add support for `inverse()` and `invertSelf()` to `DOMMatrix` ([#​1648](https://togithub.com/Automattic/node-canvas/issues/1648)) - Add support for `context.getTransform()` ([#​1769](https://togithub.com/Automattic/node-canvas/pull/1769)) - Add support for `context.setTransform(dommatrix)` ([#​1769](https://togithub.com/Automattic/node-canvas/pull/1769)) ##### Fixed - Fix `actualBoundingBoxLeft` and `actualBoundingBoxRight` returned by `measureText` to be the ink rect ([#​1776](https://togithub.com/Automattic/node-canvas/pull/1776), fixes [#​1703](https://togithub.com/Automattic/node-canvas/issues/1703)). - Fix Pango logging "expect ugly output" on Windows ([#​1643](https://togithub.com/Automattic/node-canvas/issues/1643)) - Fix benchmark for createPNGStream ([#​1672](https://togithub.com/Automattic/node-canvas/issues/1672)) - Fix dangling reference in BackendOperationNotAvailable exception ([#​1740](https://togithub.com/Automattic/node-canvas/issues/1740)) - Fix always-false comparison warning in Canvas.cc. - Fix Node.js crash when throwing from an onload or onerror handler. ### [`v2.7.0`](https://togithub.com/Automattic/node-canvas/blob/master/CHANGELOG.md#​270) [Compare Source](https://togithub.com/Automattic/node-canvas/compare/v2.6.1...v2.7.0) \================== ##### Changed - Switch CI to Github Actions. (Adds Windows and macOS builds.) - Switch prebuilds to GitHub actions in the Automattic/node-canvas repository. Previously these were in the [node-gfx/node-canvas-prebuilt](https://togithub.com/node-gfx/node-canvas-prebuilt) and triggered manually. - Speed up `fillStyle=` and `strokeStyle=` ##### Added - Export `rsvgVersion`. ##### Fixed - Fix BMP issues. ([#​1497](https://togithub.com/Automattic/node-canvas/issues/1497)) - Update typings to support jpg and addPage on NodeCanvasRenderingContext2D ([#​1509](https://togithub.com/Automattic/node-canvas/issues/1509)) - Fix assertion failure when using Visual Studio Code debugger to inspect Image prototype ([#​1534](https://togithub.com/Automattic/node-canvas/issues/1534)) - Fix signed/unsigned comparison warning introduced in 2.6.0, and function cast warnings with GCC8+ - Fix to compile without JPEG support ([#​1593](https://togithub.com/Automattic/node-canvas/issues/1593)). - Fix compile errors with cairo - Fix Image#complete if the image failed to load. - Upgrade node-pre-gyp to v0.15.0 to use latest version of needle to fix error when downloading prebuilds. - Don't throw if `fillStyle` or `strokeStyle` is set to an object, but that object is not a Gradient or Pattern. (This behavior was non-standard: invalid inputs are supposed to be ignored.)

---

Configuration

📅 Schedule: "before 3am on the first day of the month" (UTC).

🚦 Automerge: Enabled.

♻️ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• [ ] If you want to rebase/retry this PR, check this box.

---

This PR has been generated by WhiteSource Renovate. View repository job log here.