GITHUB handler update

[ea-rus]

Dependent on: mindsdb/mindsdb_sql#348

Changes

• updated APITable interface:
• list method to replace select, params:
  • prepared conditions
  • limit
  • sort columns
  • target columns
• add instead of `insert', param:
  • dict
• support of 'last' keyword
• Updated tables to new interface:
  • issues
  • pull_requests
• Added tables
  • files
    • default limit is 100
• Conditional jobs
  • Here query 2 will be executed it query1 is successful and returns anything:
  • create job j1 (<query 2>) if (<query 1>) https://github.com/mindsdb/mindsdb_private/issues/400
• Create [or replace] model fixes https://github.com/mindsdb/mindsdb_private/issues/401

Examples using files table:

select * from gh.files
where path = 'mindsdb/integrations/handlers' 
and name like '%.py'
and name not like '__%'
 limit 10

result:

Because handler makes +1 request for every row in order to download content: this column should be explicitly specified:

select name, content from gh.files
where path = 'mindsdb/integrations/handlers' 
and name like '%.py'
and name not like '__%'
 limit 5

result:

Fixes https://github.com/mindsdb/mindsdb_private/issues/390

Description

Please include a summary of the change and the issue it solves.

Fixes #issue_number

Type of change

• ⚡ New feature (non-breaking change which adds functionality)

Verification Process

To ensure the changes are working as expected:

• Test Location: Specify the URL or path for testing.
• Verification Steps: Outline the steps or queries needed to validate the change. Include any data, configurations, or actions required to reproduce or see the new functionality.

Additional Media:

• I have attached a brief loom video or screenshots showcasing the new functionality or change.

Checklist:

• My code follows the style guidelines(PEP 8) of MindsDB.
• I have appropriately commented on my code, especially in complex areas.
• Necessary documentation updates are either made or tracked in issues.
• Relevant unit and integration tests are updated or added.