service/progress: ServiceProgress: avoid fuzzy matching service ID in loop

[thaJeztah]

service/progress: newReplicatedJobProgressUpdater: slight cleanup

Use intermediate vars, so that the replicatedJobProgressUpdater can
be created in one go intead of setting some fields after the fact.

service/progress: ServiceProgress: avoid fuzzy matching service ID in loop

Tasks with a service filter will result in the daemon performing a lookup
of the full service ID, then updating the provided filter with the actual
ID: https://github.com/moby/moby/blob/96ded2a1badcc5cb99d6d2ab7904d6f9e527cc4b/daemon/cluster/tasks.go#L15-L30

The getService() helper has a fast-path for situations where the given
filter is a full ID, before falling back to fuzzy-logic to search filters
by service name or prefix, which would return an error if the result is
ambiguous;
https://github.com/moby/moby/blob/96ded2a1badcc5cb99d6d2ab7904d6f9e527cc4b/daemon/cluster/helpers.go#L62-L81

The loop executed here calls client.ServiceInspectWithRaw() to get info
of the service, and that method is ultimately calling the exact same
getService() helper on the daemon side, which means that we don't need
to repeat the work; we can use the Service.ID resolved from that call,
and use it to apply as filter for listing the tasks.

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 66.66667% with 5 lines in your changes missing coverage. Please review.

Project coverage is 59.43%. Comparing base (4771aba) to head (a428800).
Report is 7 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #5788   +/-   ##
=======================================
  Coverage   59.42%   59.43%           
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  Files         347      347           
  Lines       29395    29392    -3     
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+ Hits        17469    17470    +1     
+ Misses      10954    10950    -4     
  Partials      972      972