chore(deps): update golang docker tag to v1.26.6 (#214)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Dockerfile

@@ -7,7 +7,7 @@ ARG USER_ID=1000
 ARG GROUP_ID=1000
 
 # Base stage
-FROM golang:1.26.5-bookworm AS base
+FROM golang:1.26.6-bookworm AS base
 ARG WORKSPACE
 ARG USER
 ARG USER_ID