chore(deps): update docker.io/library/golang:1.25.3 docker digest to 6bac879 (#1593)

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

Author: renovate[bot]

Dockerfile

@@ -1,5 +1,5 @@
 # Build the manager binary
-FROM docker.io/library/golang:1.25.3@sha256:8c945d3e25320e771326dafc6fb72ecae5f87b0f29328cbbd87c4dff506c9135 AS builder
+FROM docker.io/library/golang:1.25.3@sha256:6bac879c5b77e0fc9c556a5ed8920e89dab1709bd510a854903509c828f67f96 AS builder
 ARG GOPROXY
 ARG TARGETOS
 ARG TARGETARCH