## Problem
build-tools image does not provide superuser, so additional packages can
not be installed during GitHub benchmarking workflows but need to be
added to the image
## Summary of changes
install pgcopydb version 0.17-1 or higher into build-tools bookworm
image
```bash
docker run -it neondatabase/build-tools:<tag>-bookworm-arm64 /bin/bash
...
nonroot@c23c6f4901ce:~$ LD_LIBRARY_PATH=/pgcopydb/lib /pgcopydb/bin/pgcopydb --version;
13:58:19.768 8 INFO Running pgcopydb version 0.17 from "/pgcopydb/bin/pgcopydb"
pgcopydb version 0.17
compiled with PostgreSQL 16.4 (Debian 16.4-1.pgdg120+2) on aarch64-unknown-linux-gnu, compiled by gcc (Debian 12.2.0-14) 12.2.0, 64-bit
compatible with Postgres 11, 12, 13, 14, 15, and 16
```
Example usage of that image in a workflow
https://github.com/neondatabase/neon/actions/runs/11725718371/job/32662681172#step:7:14
## Problem
Our dockerfiles, for some historical reason, have unconventional names
`Dockerfile.<something>`, and some tools (like GitHub UI) fail to highlight
the syntax in them.
> Some projects may need distinct Dockerfiles for specific purposes. A
common convention is to name these `<something>.Dockerfile`
From: https://docs.docker.com/build/concepts/dockerfile/#filename
## Summary of changes
- Rename `Dockerfile.build-tools` -> `build-tools.Dockerfile`
- Rename `compute/Dockerfile.compute-node` ->
`compute/compute-node.Dockerfile`
