Bump the docker-deps group across 4 directories with 1 update

Bumps the docker-deps group with 1 update in the /erigon directory: golang.
Bumps the docker-deps group with 1 update in the /flashbots directory: golang.
Bumps the docker-deps group with 1 update in the /geth directory: golang.
Bumps the docker-deps group with 1 update in the /prysm directory: golang.


Updates `golang` from 1.25-trixie to 1.26-trixie

Updates `golang` from 1.25-alpine to 1.26-alpine

Updates `golang` from 1.25-alpine to 1.26-alpine

Updates `golang` from 1.25-trixie to 1.26-trixie

---
updated-dependencies:
- dependency-name: golang
  dependency-version: 1.26-trixie
  dependency-type: direct:production
  dependency-group: docker-deps
- dependency-name: golang
  dependency-version: 1.26-alpine
  dependency-type: direct:production
  dependency-group: docker-deps
- dependency-name: golang
  dependency-version: 1.26-alpine
  dependency-type: direct:production
  dependency-group: docker-deps
- dependency-name: golang
  dependency-version: 1.26-trixie
  dependency-type: direct:production
  dependency-group: docker-deps
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

erigon/Dockerfile.source

@@ -1,6 +1,6 @@
 # hadolint global ignore=DL3007,DL3008,DL3059,DL4006
 # Build Erigon in a stock Go build container
-FROM golang:1.25-trixie AS builder
+FROM golang:1.26-trixie AS builder
 
 # Unused, this is here to avoid build time complaints
 ARG DOCKER_TAG

flashbots/Dockerfile.source

@@ -1,6 +1,6 @@
 # hadolint global ignore=DL3007,DL3008,DL3018,DL3059,DL4006
 # Build in a stock Go build container
-FROM golang:1.25-alpine AS builder
+FROM golang:1.26-alpine AS builder
 
 # Unused, this is here to avoid build time complaints
 ARG DOCKER_TAG

geth/Dockerfile.source

@@ -1,6 +1,6 @@
 # hadolint global ignore=DL3007,DL3008,DL3018,DL3059,DL4006
 # Build Geth in a stock Go build container
-FROM golang:1.25-alpine AS builder
+FROM golang:1.26-alpine AS builder
 
 # Unused, this is here to avoid build time complaints
 ARG DOCKER_TAG

prysm/Dockerfile.source

@@ -1,6 +1,6 @@
 # hadolint global ignore=DL3007,DL3008,DL3016,DL3059,DL4006
 # Build Prysm in a stock Go build container
-FROM golang:1.25-trixie AS builder
+FROM golang:1.26-trixie AS builder
 
 # Here only to avoid build-time errors
 ARG DOCKER_TAG