Update Dockerfile to use Alpine 3.22 and enforce frozen lockfile during yarn install

@@ -1,4 +1,4 @@FROM alpine:3.16FROM alpine:3.22RUN apk add --update --no-cache nodejs yarn

@@ -6,7 +6,7 @@ WORKDIR /appCOPY package.json yarn.lock /app/RUN yarn installRUN yarn install --frozen-lockfileCOPY . .