Add a minor fix for make buildimage (#4295)

<!-- PR description-->
`make buildimage` currently fails with `/bin/sh: 1: unzip: not found`. Adding a command to install unzip.

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

- [ ] ✅ Yes, it's included
- [ ] 🕐 Yes, but in a later PR
- [x] ⛔ No

#### Type of change

<!--- Please check the type of change your PR introduces: --->
- [ ] 🌻 Feature
- [ ] 🐛 Bugfix
- [x] 🗺️ Documentation
- [ ] 🤖 Supportability/Tests
- [ ] 💻 CI/Deployment
- [ ] 🧹 Tech Debt/Cleanup

#### Issue(s)

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* #<issue>

#### Test Plan

<!-- How will this be tested prior to merging.-->
- [x] 💪 Manual
- [ ] ⚡ Unit test
- [ ] 💚 E2E

website/Dockerfile

@@ -4,7 +4,7 @@ LABEL MAINTAINER="Niraj Tolia"
 ARG DEBIAN_FRONTEND=noninteractive
 
 # 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 \
+RUN apt-get -y update && apt-get -y install gpg curl git make ca-certificates gnupg unzip \
   && 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 \