ci(renovate): cover all played repos, not just games

Expand RENOVATE_REPOSITORIES from the 7 game/plaza repos to the full set,
adding the shared libraries (achievements, api-core, app-ui, auth, cms,
config, create-game, discord-bot, games-registry, gen, media, omiru,
platform, ui), infra (compose image tags), and this workflows repo itself
(its github.com actions). Onboarding is enabled, so each newly-listed repo
gets a "Configure Renovate" PR adding the shared preset.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.gitea/workflows/renovate.yml

@@ -66,5 +66,5 @@ jobs:
             -e RENOVATE_AUTODISCOVER=false \
             -e RENOVATE_ONBOARDING=true \
             -e RENOVATE_ONBOARDING_CONFIG='{"$schema":"https://docs.renovatebot.com/renovate-schema.json","extends":["local>played/workflows:renovate-config"]}' \
-            -e RENOVATE_REPOSITORIES='played/relayer,played/rememed,played/remplir,played/resolu,played/rejouer,played/refaire,played/plaza' \
+            -e RENOVATE_REPOSITORIES='played/achievements,played/api-core,played/app-ui,played/auth,played/cms,played/config,played/create-game,played/discord-bot,played/games-registry,played/gen,played/infra,played/media,played/omiru,played/platform,played/plaza,played/refaire,played/rejouer,played/relayer,played/rememed,played/remplir,played/resolu,played/ui,played/workflows' \
             renovate/renovate:latest