Bump golang from 1.25.2 to 1.25.3 in the docker group (#455)

Bumps the docker group with 1 update: golang.


Updates `golang` from 1.25.2 to 1.25.3

---
updated-dependencies:
- dependency-name: golang
  dependency-version: 1.25.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: docker
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Dockerfile

@@ -1,5 +1,5 @@
 # Build the manager binary
-FROM golang:1.25.2 AS builder
+FROM golang:1.25.3 AS builder
 ARG TARGETOS
 ARG TARGETARCH