ci: fixed workflow for generating introspection query for docs

[banasa44]

Description

In this PR two problems are fixed:

1. We have now 2 processes that generate 2 different types of introspection-query for subgraph schema. Some modifications need to be done for the introspection for docs purposes. Create a temp schema, add some necessary lines for the introspection-partial, generate it, and delete the temp.schema.

https://subgraph.satsuma-prod.com/aragon/osx-carles-sepolia/version/2/playground

Task ID: OS-1221

Type of change

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• [x] I have selected the correct base branch.
• [x] I have performed a self-review of my own code.
• [x] I have commented my code, particularly in hard-to-understand areas.
• [x] My changes generate no new warnings.
• [ ] Any dependent changes have been merged and published in downstream modules.
• [ ] I ran all tests with success and extended them if necessary.
• [ ] I have updated the CHANGELOG.md file in the root folder.
• [ ] I have updated the DEPLOYMENT_CHECKLIST file in the root folder.
• [ ] I have updated the UPDATE_CHECKLIST file in the root folder.
• [x] I have updated the Subgraph and added a QA URL to the description of this PR.