fix: use correct sha digest for base image

Ticket: WP-6774

Author: pranavjain97

Dockerfile

@@ -1,11 +1,10 @@
 # syntax=docker/dockerfile:1.4
 
 # Build stage
-# Using node:22-alpine with OpenSSL 3.3.2+ to address CVE-2024-6119
-# Pinned to specific SHA256 digest for supply chain security and deterministic builds
-# To update: podman pull node:22-alpine && podman inspect node:22-alpine --format '{{index .RepoDigests 0}}'
-# Last updated: 2025-10-24
-FROM node:22-alpine@sha256:d31216005bd330aa47f848822d4f269f6c79f0905b60cca1d87577149519daa6 AS builder
+# Using node:22.1.0-alpine with OpenSSL 3.3.2+ to address CVE-2024-6119
+# Pinned to AMD64-specific SHA256 digest for supply chain security and deterministic builds
+# To update: docker pull --platform linux/amd64 node:22.1.0-alpine && docker inspect --format='{{index .RepoDigests 0}}' node:22.1.0-alpine
+FROM node:22.1.0-alpine@sha256:487dc5d5122d578e13f2231aa4ac0f63068becd921099c4c677c850df93bede8 AS builder
 
 # Set build-time variables for reproducibility
 ARG NODE_ENV=development
@@ -55,9 +54,9 @@ COPY . .
 RUN npm run build
 
 # Production stage
-# Using node:22-alpine with OpenSSL 3.3.2+ to address CVE-2024-6119
-# Pinned to specific SHA256 digest for supply chain security and deterministic builds
-FROM node:22-alpine@sha256:d31216005bd330aa47f848822d4f269f6c79f0905b60cca1d87577149519daa6 AS production
+# Using node:22.1.0-alpine with OpenSSL 3.3.2+ to address CVE-2024-6119
+# Pinned to AMD64-specific SHA256 digest for supply chain security and deterministic builds
+FROM node:22.1.0-alpine@sha256:487dc5d5122d578e13f2231aa4ac0f63068becd921099c4c677c850df93bede8 AS production
 
 # Declare build arguments in production stage
 ARG PORT=3081