[support-infra] Handle GitHub issue API breaking change

[oliviertassinari]

Steps to reproduce

Steps:
1 See. https://github.blog/changelog/2025-03-06-github-issues-projects-api-support-for-issues-advanced-search-and-more/#api-support-for-issues-advanced-search

On September 4, 2025, all issue queries will use advanced search by default

This means that a bunch of the tools that we rely on to ensure https://www.notion.so/mui-org/Technical-Support-80c9c7e0af614af68c1abb7120f634c8?pvs=4#ade93334755f49a58c51c2d2399eaf05 will stop working. KPI too, maybe. For example:

mui-public/tools-public/toolpad/pages/needtriageNotAssigned/page.yml

Lines 63 to 68 in 5e4cbe9

	url: https://api.github.com/search/issues
	searchParams:
	- name: q
	value: 'repo:mui/pigment-css repo:mui/base-ui repo:mui/material-ui
	repo:mui/mui-x repo:mui/mui-design-kits is:open is:issue
	label:"status: waiting for maintainer" no:assignee'

will stop working, a space will mean AND while it means OR today.

Current behavior

No response

Expected behavior

No response

Context

No response

Your environment

npx @mui/envinfo

  Don't forget to mention which browser you used.
  Output from `npx @mui/envinfo` goes here.

Search keywords: -