build(deps): bump github.com/kovidgoyal/imaging from 1.6.4 to 1.7.2

Bumps [github.com/kovidgoyal/imaging](https://github.com/kovidgoyal/imaging) from 1.6.4 to 1.7.2.
- [Release notes](https://github.com/kovidgoyal/imaging/releases)
- [Changelog](https://github.com/kovidgoyal/imaging/blob/master/.goreleaser.yaml)
- [Commits](https://github.com/kovidgoyal/imaging/compare/v1.6.4...v1.7.2)

---
updated-dependencies:
- dependency-name: github.com/kovidgoyal/imaging
  dependency-version: 1.7.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

vendor/github.com/kovidgoyal/imaging/convolution.go

@@ -70,8 +70,8 @@ func convolve(img image.Image, kernel []float64, options *ConvolveOptions) *imag
 		}
 	}
 
-	parallel(0, h, func(ys <-chan int) {
-		for y := range ys {
+	if err := run_in_parallel_over_range(0, func(start, limit int) {
+		for y := start; y < limit; y++ {
 			for x := 0; x < w; x++ {
 				var r, g, b float64
 				for _, c := range coefs {
@@ -123,7 +123,9 @@ func convolve(img image.Image, kernel []float64, options *ConvolveOptions) *imag
 				d[3] = src.Pix[srcOff+3]
 			}
 		}
-	})
+	}, 0, h); err != nil {
+		panic(err)
+	}
 
 	return dst
 }