Remove npm update, pin pnpm version + use the one from package.json f…

…or the project

Dockerfile

@@ -1,16 +1,22 @@
 FROM node:lts-alpine AS base
-ENV PNPM_HOME="/pnpm"
-ENV PATH="$PNPM_HOME:$PATH"
 RUN corepack enable
 WORKDIR /app
 
-RUN npm install -g npm@latest
-RUN wget -qO- https://get.pnpm.io/install.sh | ENV="$HOME/.shrc" SHELL="$(which sh)" sh -
 
 FROM base AS deps
+
+# This PNPM_VERSION is used to install the dependencies. Those include a possibly different version of pnpm
+# that is to be used for the package. Found in package.json - packageManager
+ENV PNPM_VERSION=8.6.2
+
+ENV PNPM_HOME="/pnpm"
+ENV PATH="$PNPM_HOME:$PATH"
+RUN wget -qO- https://get.pnpm.io/install.sh | ENV="$HOME/.shrc" SHELL="$(which sh)" sh -
+
 COPY . /app
 RUN --mount=type=cache,id=pnpm,target=/pnpm/store pnpm install --frozen-lockfile
 
+
 FROM base
 COPY --from=deps /app/node_modules /app/node_modules