Website: Upgrade Ubuntu and Node install process (#4230)

Fixes build failures and depreciations

---

#### Does this PR need a docs update or release note?

- [x] ⛔ No

#### Type of change

- [x] 🐛 Bugfix
- [x] 🗺️ Documentation

website/Dockerfile

@@ -1,11 +1,14 @@
-FROM ubuntu:22.10
+FROM ubuntu:23.04
 LABEL MAINTAINER="Niraj Tolia"
 
 ARG DEBIAN_FRONTEND=noninteractive
 
-# NOTE for lines 13,15: update in CI when updating
-RUN apt-get -y update && apt-get -y install gpg emacs curl zip git make \
-  && curl -fsSL https://deb.nodesource.com/setup_current.x | bash - \
+# NOTE for lines 17,19: update in CI when updating
+RUN apt-get -y update && apt-get -y install gpg curl git make ca-certificates gnupg \
+  && mkdir -p /etc/apt/keyrings \
+  && curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg \
+  && echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_20.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list \
+  && apt-get update \
   && apt-get -y install nodejs \
   && apt-get autoclean \
   && node --version \

website/Makefile

@@ -1,6 +1,6 @@
 .PHONY: buildimage build dev shell check genclidocs _validatemdgen publish sync
 
-GO_VERSION := 1.20
+GO_VERSION := 1.21
 CORSO_BUILD_DIR := /tmp/.corsobuild
 CORSO_BUILD_CACHE := ${CORSO_BUILD_DIR}/cache
 CORSO_BUILD_MOD := ${CORSO_BUILD_DIR}/mod