Rebuild qgis against legacy python-sip

Summary:
Rebuild against python-qscintilla and python-sip-4.

Depends on D11435 D11444

Signed-off-by: Algent Albrahimi <algent@protonmail.com>

Test Plan: Run qgis and open an existing project.

Reviewers: Triage Team, JoshStrobl

Reviewed By: Triage Team, JoshStrobl

Subscribers: JoshStrobl

Differential Revision: https://dev.getsol.us/D11446

Former-commit-id: R2726:eab22f5ef942