Shorten the Awakeable id

[slinkydeveloper]

Rather than using the combination service name + service key + invocation id + entry index, we could use simply partition key + invocation id + entry index. This would make the awakeable id bounded, solving problems such as restatedev/proto#21 (comment) and it would not leak the service key anymore.

Tasks

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1. Implement a scan function in the storage to retrieve a ServiceInvocationId from PartitionKey and InvocationId. This operation would effectively scan the status table using PartitionKey as prefix, deserialize the Status, and stop on the first match of InvocationId #706
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2. Modify the InvocationResponse data structure to support both ServiceInvocationId and a newtype (name TBD) that contains only PartitionKey and InvocationId to address the caller invocation. In case the newtype is found, the state machine needs to use the aforementioned scan operation to retrieve the ServiceInvocationId #707
   partition-processor +1
   
3. Modify the protocol to define a new format for the AwakeableIdentifier (perhaps getting rid of the AwakeableIdentifier message?), carry the partition_key in StartMessage and modify the CompleteAwakeableEntryMessage accordingly service-protocol#46
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4. Propagate protocol changes in the runtime for the new awakeable identifier format #721
   ingress invoker +2
   
5. Support the new AwakeableIdentifier format sdk-typescript#154
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6. Support the new AwakeableIdentifier format sdk-java#107
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