chore(deps): update golang docker tag to v1.26.1 (#160)

Co-authored-by: alaudaa-renovate[bot] <219066560+alaudaa-renovate[bot]@users.noreply.github.com>

Author: alaudaa-renovate[bot]

roadmap-planner/Dockerfile

@@ -19,7 +19,7 @@ COPY frontend/ ./
 # Build the frontend
 RUN npm run build
 
-ARG GO_IMAGE=golang:1.26.0-alpine
+ARG GO_IMAGE=golang:1.26.1-alpine
 # Stage 2: Build backend
 FROM ${GO_IMAGE} AS backend-builder
 

roadmap-planner/backend/Dockerfile

@@ -1,5 +1,5 @@
 # Build stage
-FROM golang:1.26.0-alpine AS builder
+FROM golang:1.26.1-alpine AS builder
 
 # Install git and ca-certificates (needed for go modules and HTTPS)
 RUN apk add --no-cache git ca-certificates