[CT-2337] [Bug] [Partial parsing] Error in merge_patch when version: 2 missing from yaml file

[jtcohen6]

I think there might be a bug with partial parsing if a yaml ("schema") file is missing version: 2, per #7060!

models:
  - name: any_model
    description: My favorite model

-- models/any_model.sql
select 1 as id

$ dbt parse
00:32:51  Running with dbt=1.5.0-b4
00:32:51  Unable to do partial parsing because an error occurred. Switching to full reparse.
00:32:52  Performance info: target/perf_info.json

In logs/dbt.log:

PP exception info: {'code': '    schema_file.pp_dict = {"version": schema_file.dict_from_yaml["version"]}', 'parse_file_type': 'model', 'exception': "KeyError: 'version'", 'location': 'line 810 in merge_patch', 'traceback': 'Traceback (most recent call last):
  File "/Users/jerco/dev/product/dbt-core/core/dbt/parser/manifest.py", line 293, in load
    project_parser_files = self.partial_parser.get_parsing_files()
  File "/Users/jerco/dev/product/dbt-core/core/dbt/parser/partial.py", line 188, in get_parsing_files
    self.update_in_saved(file_id)
  File "/Users/jerco/dev/product/dbt-core/core/dbt/parser/partial.py", line 288, in update_in_saved
    self.update_mssat_in_saved(new_source_file, old_source_file)
  File "/Users/jerco/dev/product/dbt-core/core/dbt/parser/partial.py", line 316, in update_mssat_in_saved
    self.remove_node_in_saved(new_source_file, unique_id)
  File "/Users/jerco/dev/product/dbt-core/core/dbt/parser/partial.py", line 350, in remove_node_in_saved
    self.merge_patch(schema_file, dict_key, elem_patch)
  File "/Users/jerco/dev/product/dbt-core/core/dbt/parser/partial.py", line 810, in merge_patch
    schema_file.pp_dict = {"version": schema_file.dict_from_yaml["version"]}
KeyError: \'version\'
'}