build(deps): bump node from 22-alpine to 26-alpine

Bumps node from 22-alpine to 26-alpine.

---
updated-dependencies:
- dependency-name: node
  dependency-version: 26-alpine
  dependency-type: direct:production
...

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

Author: dependabot[bot]

Dockerfile

@@ -1,14 +1,14 @@
 # syntax=docker/dockerfile:1
 
-FROM node:22-alpine AS build
+FROM node:26-alpine AS build
 WORKDIR /app
 COPY package.json package-lock.json ./
 RUN npm ci
 COPY tsconfig.json ./
 COPY src ./src
 RUN npm run build && npm prune --omit=dev
 
-FROM node:22-alpine AS runtime
+FROM node:26-alpine AS runtime
 WORKDIR /app
 ENV NODE_ENV=production
 RUN addgroup --system --gid 1001 nodejs \