bugfix: add build system imports to new packages (#50587)

Since #50452, build systems are no longer in core and need their own imports.

Specifically, in addition to:

```python
from spack.package import *
```

you now also need, e.g.:

```python
from spack_repo.builtin.build_systems.python import PythonPackage
```

Or similar for other build systems, or things will break.

- [x] Fix `py-deprecat` package
- [x] Fix `cryoef` package

Signed-off-by: Todd Gamblin <tgamblin@llnl.gov>

var/spack/repos/spack_repo/builtin/packages/cryoef/package.py

@@ -2,6 +2,8 @@
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 
+from spack_repo.builtin.build_systems.makefile import MakefilePackage
+
 from spack.package import *
 
 

var/spack/repos/spack_repo/builtin/packages/py_deprecat/package.py

@@ -2,6 +2,8 @@
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 
+from spack_repo.builtin.build_systems.python import PythonPackage
+
 from spack.package import *