Update docker Docker tag to v26.1.2

This MR contains the following updates:

Package	Type	Update	Change
docker	final	patch	26.1.1-dind -> 26.1.2-dind

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Dockerfile

-ARG DOCKER_VERSION=26.1.1-dind
+ARG DOCKER_VERSION=26.1.2-dind
 ARG BUILDX_VERSION=0.14.0
 FROM docker/buildx-bin:${BUILDX_VERSION} AS fetcher