Update to Gaudi v39r0

Update to Gaudi v39r0.

Backwards incompatible fixes on our side:

• TrigMonTHistSvc: adapt to ITHistSvc interface change in Gaudi v39
• AthExCUDA: rename Algorithm.Blocking to Asynchronous (cc @bstanisl)

Several Gaudi APIs have been deprecated in v39 and the relevant build warnings are fixed in these separate MRs:

• !74366 (merged)
• !74391 (merged)
• !74392 (merged)
• !74411 (merged)
• !74414 (merged)
• !74409 (merged)
• !74461 (merged)

cc @leggett @elmsheus