release-process: update based on 8.5.0RC1 and discussions#19939

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DanielEScherzer wants to merge 6 commits intophp:masterfrom

DanielEScherzer:release-process-updates-rc

Commits on Sep 23, 2025

release-process: update based on 8.5.0RC1 and discussions
DanielEScherzer
authored

Commits on Sep 24, 2025

.github/nightly_matrix.php needs to be updated
DanielEScherzer
authored