docs: add core/replicant node upgrade guidance to Japanese rolling up…

…grades doc

- Add section explaining alternating upgrade strategy for core/replicant clusters
- Translate content from English version to maintain consistency
- Ensure replicants always have compatible cores during rollout

Merge remote-tracking branch 'origin/release-5.9' into release-5.10

docs: add core/replicant node upgrade guidance to Japanese rolling up…

…grades doc

- Add section explaining alternating upgrade strategy for core/replicant clusters
- Translate content from English version to maintain consistency
- Ensure replicants always have compatible cores during rollout

Merge pull request #3196 from zmstone/251006-document-core-replicant-…

…upgrade-steps

docs(rolling-upgrade): document core-replicant upgrade order

Merge pull request #3194 from emqx/20251001-update-global-rnd-address

update Global R&D center address

Merge remote-tracking branch 'origin/release-5.9' into release-5.10

Merge remote-tracking branch 'origin/release-5.8' into release-5.9

update Global R&D center address

update Global R&D center address

Merge pull request #3156 from emqx/r60-message-queue

feat(message queue): Message queue documents