add emacs-nox [bnm2717] (#1107)

### Description

- Add emacs-nox to image for developer velocity. It very helpful to have
a command-line editor built-into the container for quick investigation.

### Type of changes

<!-- Mark the relevant option with an [x] -->

- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Refactor
- [ ] Documentation update
- [x] Other (please describe):

### CI Pipeline Configuration

Configure CI behavior by applying the relevant labels:

-
[SKIP_CI](https://github.com/NVIDIA/bionemo-framework/blob/main/docs/docs/user-guide/contributing/contributing.md#skip_ci)
- Skip all continuous integration tests
-
[INCLUDE_NOTEBOOKS_TESTS](https://github.com/NVIDIA/bionemo-framework/blob/main/docs/docs/user-guide/contributing/contributing.md#include_notebooks_tests)
- Execute notebook validation tests in pytest
-
[INCLUDE_SLOW_TESTS](https://github.com/NVIDIA/bionemo-framework/blob/main/docs/docs/user-guide/contributing/contributing.md#include_slow_tests)
- Execute tests labelled as slow in pytest for extensive testing

> [!NOTE]
> By default, the notebooks validation tests are skipped unless
explicitly enabled.

#### Authorizing CI Runs

We use
[copy-pr-bot](https://docs.gha-runners.nvidia.com/apps/copy-pr-bot/#automation)
to manage authorization of CI
runs on NVIDIA's compute resources.

- If a pull request is opened by a trusted user and contains only
trusted changes, the pull request's code will
automatically be copied to a pull-request/ prefixed branch in the source
repository (e.g. pull-request/123)
- If a pull request is opened by an untrusted user or contains untrusted
changes, an NVIDIA org member must leave an
`/ok to test` comment on the pull request to trigger CI. This will need
to be done for each new commit.

### Usage

<!--- How does a user interact with the changed code -->

```python
# TODO: Add code snippet
```

### Pre-submit Checklist

<!--- Ensure all items are completed before submitting -->

- [NA] I have tested these changes locally
- [NA] I have updated the documentation accordingly
- [NA] I have added/updated tests as needed
- [NA] All existing tests pass successfully

Signed-off-by: Brian Roland <broland@nvidia.com>

Author: broland-hat

Dockerfile

@@ -49,6 +49,7 @@ apt-get install -qyy \
   curl \
   pre-commit \
   sudo \
+  emacs-nox \
   gnupg \
   unzip \
   libsqlite3-dev