chore(deps): bump golang in /deploy/docker

Bumps golang from 1.26.5-alpine to 1.26.6-alpine.

---
updated-dependencies:
- dependency-name: golang
  dependency-version: 1.26.6-alpine
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

deploy/docker/base.dockerfile

@@ -24,7 +24,7 @@ RUN XCADDY_SETCAP=0 xcaddy build \
 
 # Build MongoDB database tools from source with pinned x/crypto and x/net
 # Apt-installed mongodb-database-tools ships x/crypto@0.45.0 with no upstream fix available.
-FROM golang:1.26.5-alpine AS mongotoolsbuilder
+FROM golang:1.26.6-alpine AS mongotoolsbuilder
 
 RUN apk add --no-cache git make bash
 WORKDIR /tmp/mongo-tools