submodule: bump openthread from `a54f4c4` to `d95b44c`

[dependabot[bot]]

Bumps openthread from a54f4c4 to d95b44c.

Commits

• d95b44c [mle] add helper methods to RxMessage (#10319)
• 4951dee [routing-manager] update stale time calculation for local RA header (#10316)
• 7b08e9a [routing-manager] update and simplify RA beacon timing (#10309)
• ca7dd82 [mle] simplify signaling of DUA address change (#10296)
• edad0f9 [radio] update otPlatRadioSetRxOnWhenIdle documentation (#10307)
• d2e74dc [routing-manager] fix lifetime management of PD prefix (#10310)
• bef804c [utils] add API to reset/clear linked list of enh-ack link metrics (#10294)
• 8d38fc7 [dso] use NextFireTime (#10306)
• 0b71673 [mdns] use NextFireTime class (#10304)
• 2841ca0 [dataset-updater] enhance DatasetUpdater (#10293)
• Additional commits viewable in compare view

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[dependabot[bot]]

Superseded by #736.