fix: standardize Dockerfile stage names to uppercase

Updates the Dockerfile to use uppercase for multi-stage build
definitions. This change enhances readability and maintains consistency
across the build stages, ensuring alignment with common best practices in
Dockerfile conventions.

.version

@@ -1,3 +1,3 @@
 {
-  "version": "1.5.0"
+  "version": "1.6.0"
 }

CHANGELOG.md

@@ -2,6 +2,17 @@
 
 All notable changes to this project will be documented in this file.
 
+## [1.6.0] - 2026-01-16
+
+### 🚀 Features
+
+- Add multi-platform build support (amd64, arm64)
+
+### ⚙️ Miscellaneous Tasks
+
+- *(deps)* Update golang:1.25.5 docker digest to 3a01526 (#223)
+- *(deps)* Update dependency go to v1.25.6 (#225)
+
 ## [1.5.0] - 2026-01-10
 
 ### 🚀 Features

Dockerfile

@@ -1,9 +1,12 @@
-FROM golang:1.25.6@sha256:fc24d3881a021e7b968a4610fc024fba749f98fe5c07d4f28e6cfa14dc65a84c as deps
+FROM golang:1.25.6@sha256:fc24d3881a021e7b968a4610fc024fba749f98fe5c07d4f28e6cfa14dc65a84c AS deps
 WORKDIR /build
 ADD go.* /build
 RUN go mod download
 
-FROM deps as build
+FROM deps AS build
+ARG TARGETOS
+ARG TARGETARCH
+
 ENV CGO_ENABLED=0
 ADD . /build
 RUN if [ $(go mod tidy -v 2>&1 | grep -c unused) != 0 ]; then echo "Unused modules, please run 'go mod tidy'"; exit 1; fi
@@ -14,9 +17,9 @@ RUN ["/bin/bash", "-c", "cat coverage.txt.tmp | grep -v -f <(find . -type f | xa
 RUN go tool cover -html=coverage.txt -o coverage.html
 RUN go tool cover -func=coverage.txt
 RUN rm coverage.txt.tmp
-RUN GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -mod=readonly -o release/default-request-adder -ldflags '-w -s'
+RUN GOOS=${TARGETOS} GOARCH=${TARGETARCH} CGO_ENABLED=0 go build -mod=readonly -o release/default-request-adder -ldflags '-w -s'
 
-FROM scratch as export
+FROM scratch AS export
 COPY --from=build /build/coverage.txt /
 
 FROM scratch