chore(deps): update kyverno/chainsaw docker tag to v0.2.15

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

Author: renovate[bot]

dagger/maintenance/main.go

@@ -353,7 +353,7 @@ func (m *Maintenance) Test(
 	target string,
 	// Container image to use to run chainsaw
 	// renovate: datasource=docker depName=kyverno/chainsaw packageName=ghcr.io/kyverno/chainsaw versioning=docker
-	// +default="ghcr.io/kyverno/chainsaw:v0.2.14@sha256:c703e4d4ce7b89c5121fe957ab89b6e2d33f91fd15f8274a9f79ca1b2ba8ecef"
+	// +default="ghcr.io/kyverno/chainsaw:v0.2.15@sha256:527f3be2b9ec0580cb0bc84540a0fee99406b011c24ae3a30953e525af60809d"
 	chainsawImage string,
 	// Additional arguments to pass to Chainsaw test command
 	// +optional