No informative error when missing param in manifest when nf-core schema build

[toniher]

Description of the bug

If the maninfest in nextflow.config is missing name parameter (likely description as well), nf-core schema build fails not very informatively...

│ /home/toniher/.pyenv/versions/3.11.8/envs/fa-nf/lib/python3.11/site-packages/nf_core/schema.py:5 │
│ 89 in make_skeleton_schema                                                                       │
│                                                                                                  │
│   586 │   │   )                                                                                  │
│   587 │   │   schema_template = env.get_template("nextflow_schema.json")                         │
│   588 │   │   template_vars = {                                                                  │
│ ❱ 589 │   │   │   "name": self.pipeline_manifest.get("name", Path(self.schema_filename).parent   │
│   590 │   │   │   "description": self.pipeline_manifest.get("description", "").strip("'"),       │
│   591 │   │   }                                                                                  │
│   592 │   │   self.schema = json.loads(schema_template.render(template_vars))                    │
╰──────────────────────────────────────────────────────────────────────────────────────────────────╯
AttributeError: 'PosixPath' object has no attribute 'strip'

Command used and terminal output

nf-core schema build

System information

• Linux (Ubuntu 23.10)
• nf-core 2.13.1
• Python 3.11.8

[awgymer]

Untested code go brrrrr...

This is fixed easily enough by converting the path object to a string first. Wondering if we need some kind of indication we are using a fallback value for the workflow name though 🤔

Seems like we've had this logic for some time though so might be fine.