🌱(deps): Bump golang (#409)

Bumps the all-docker-deps group in /cmd/omniwitness with 1 update: golang.


Updates `golang` from `f18a072` to `b6ed3fd`

---
updated-dependencies:
- dependency-name: golang
  dependency-version: 1.25-alpine
  dependency-type: direct:production
  dependency-group: all-docker-deps
...

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

Author: dependabot[bot]

cmd/omniwitness/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.25-alpine@sha256:f18a072054848d87a8077455f0ac8a25886f2397f88bfdd222d6fafbb5bba440 AS builder
+FROM golang:1.25-alpine@sha256:b6ed3fd0452c0e9bcdef5597f29cc1418f61672e9d3a2f55bf02e7222c014abd AS builder
 RUN apk add --no-cache gcc musl-dev
 
 ARG GOFLAGS=""