Bump the docker-deps group across 2 directories with 2 updates (#1766)

Bumps the docker-deps group with 1 update in the /integration directory: golang.
Bumps the docker-deps group with 2 updates in the /trillian/examples/deployment/docker/ctfe directory: golang and distroless/base-debian12.


Updates `golang` from 1.25.6-bookworm to 1.26.0-bookworm

Updates `golang` from 1.25.6-bookworm to 1.26.0-bookworm

Updates `distroless/base-debian12` from `347a41e` to `937c7ea`

---
updated-dependencies:
- dependency-name: golang
  dependency-version: 1.26.0-bookworm
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: docker-deps
- dependency-name: golang
  dependency-version: 1.26.0-bookworm
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: docker-deps
- dependency-name: distroless/base-debian12
  dependency-version: 937c7eaaf6f3f2d38a1f8c4aeff326f0c56e4593ea152e9e8f74d976dde52f56
  dependency-type: direct:production
  dependency-group: docker-deps
...

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

Author: dependabot[bot]

integration/Dockerfile

@@ -1,6 +1,6 @@
 # This Dockerfile builds a base image for the certificate-transparency-go CloudBuild integration testing.
 # See https://hub.docker.com/_/golang for the set of golang base images.
-FROM golang:1.25.6-bookworm@sha256:2f768d462dbffbb0f0b3a5171009f162945b086f326e0b2a8fd5d29c3219ff14 AS ct_testbase
+FROM golang:1.26.0-bookworm@sha256:4465a2fd010308d9de86a610b56ed8ae788da5f0cf2e6ebe33d8e1f275dd2580 AS ct_testbase
 
 WORKDIR /testbase
 

trillian/examples/deployment/docker/ctfe/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.25.6-bookworm@sha256:2f768d462dbffbb0f0b3a5171009f162945b086f326e0b2a8fd5d29c3219ff14 as build
+FROM golang:1.26.0-bookworm@sha256:4465a2fd010308d9de86a610b56ed8ae788da5f0cf2e6ebe33d8e1f275dd2580 as build
 
 ARG GOFLAGS=""
 ENV GOFLAGS=$GOFLAGS
@@ -12,7 +12,7 @@ COPY . .
 
 RUN go build ./trillian/ctfe/ct_server
 
-FROM gcr.io/distroless/base-debian12@sha256:347a41e7f263ea7f7aba1735e5e5b1439d9e41a9f09179229f8c13ea98ae94cf
+FROM gcr.io/distroless/base-debian12@sha256:937c7eaaf6f3f2d38a1f8c4aeff326f0c56e4593ea152e9e8f74d976dde52f56
 
 COPY --from=build /build/ct_server /