armarx/SpeechX: Require armarx::speech

Add dependency to armarx/skills/speech (https://git.h2t.iar.kit.edu/sw/armarx/skills/speech) to packages using the speech memory.

Depends on !654 (merged)

MRs in other DBs:

• ARMAR-3: https://git.h2t.iar.kit.edu/sw/armarx-integration/robots/armar3/axii-module-database/-/merge_requests/1
• ARMAR-DE: https://git.h2t.iar.kit.edu/sw/armarx-integration/robots/armarde/axii-module-database/-/merge_requests/1