Update docker/dockerfile Docker tag to v1.21.0

renovate[bot] · web-flow · commit da280f8ee7ae · 2026-01-22T09:42:00.000Z
diff --git a/Dockerfile b/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.20.0
+# syntax=docker/dockerfile:1.21.0
 FROM koalaman/shellcheck-alpine:v0.11.0 AS shellcheck
 WORKDIR /src
 RUN --mount=type=bind,target=. \

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-# syntax=docker/dockerfile:1.20.0`
	`1`	`+# syntax=docker/dockerfile:1.21.0`
`2`	`2`	`FROM koalaman/shellcheck-alpine:v0.11.0 AS shellcheck`
`3`	`3`	`WORKDIR /src`
`4`	`4`	`RUN --mount=type=bind,target=. \`