chore(deps): update commitlint/commitlint docker tag to v20

| datasource | package               | from   | to     |
| ---------- | --------------------- | ------ | ------ |
| docker     | commitlint/commitlint | 19.9.1 | 20.1.0 |


Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

commitlint/dagger/main.go

@@ -15,7 +15,7 @@ func New(
 	// Commitlint image to use.
 	// +optional
 	// renovate image: datasource=docker depName=commitlint/commitlint versioning=docker
-	// +default="commitlint/commitlint:19.9.1"
+	// +default="commitlint/commitlint:20.1.0"
 	Image string,
 ) *Commitlint {
 	return &Commitlint{