fix: add libraries to e2e (cometbft#5235)

---

#### PR checklist

- [ ] Tests written/updated
- [ ] Changelog entry added in `.changelog` (we use
[unclog](https://github.com/informalsystems/unclog) to manage our
changelog)
- [ ] Updated relevant documentation (`docs/` or `spec/`) and code
comments

Author: Zachary Becker

test/e2e/docker/Dockerfile

@@ -23,6 +23,7 @@ FROM debian:bookworm-slim AS runtime
 # Update system packages and install network utilities
 RUN apt-get -qq update -y && apt-get -qq upgrade -y >/dev/null
 RUN apt-get -qq install -y iputils-ping iproute2 >/dev/null
+RUN apt install libsnappy-dev libgflags-dev -y >/dev/null
 
 WORKDIR /cometbft
 VOLUME /cometbft

test/e2e/docker/Dockerfile.debug

@@ -23,6 +23,7 @@ FROM golang:1.23 AS runtime
 # Update system packages and install network utilities
 RUN apt-get -qq update -y && apt-get -qq upgrade -y >/dev/null
 RUN apt-get -qq install -y iputils-ping iproute2 >/dev/null
+RUN apt install libsnappy-dev libgflags-dev -y >/dev/null
 RUN apt-get -qq install -y zsh vim >/dev/null
 RUN go install github.com/go-delve/delve/cmd/dlv@latest