chore(deps): update node.js to v22 (main) (#15992)

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

cmd/loki/Dockerfile

@@ -1,7 +1,7 @@
 ARG GO_VERSION=1.23
 
 # UI build stage
-FROM node:20-alpine AS ui-builder
+FROM node:22-alpine AS ui-builder
 RUN apk add --no-cache make
 COPY . /src/loki
 WORKDIR /src/loki