[27.x backport] Fix bash completion for events --filter daemon=

[vvoland]

• backport: Fix bash completion for events --filter daemon= #5554

- What I did
Fixed the "legacy" bash completion for events --filter daemon= that no longer works.

- How I did it
Changed completion logic from parsing the bare docker info output to using a --filter matching the desired values.

- How to verify it
type

docker events --filter daemon=<tab><tab>

Before: no completion
With this fix: completion of ID and hostname of the current docker daemon.

- Description for the changelog
Fixed bash completion for events --filter daemon=

Fixed bash completion for `events --filter daemon=`

- A picture of a cute animal (not mandatory but encouraged)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 58.65%. Comparing base (16201b3) to head (dc36908).
Report is 3 commits behind head on 27.x.

Additional details and impacted files

@@           Coverage Diff           @@
##             27.x    #5563   +/-   ##
=======================================
  Coverage   58.65%   58.65%           
=======================================
  Files         345      345           
  Lines       29042    29042           
=======================================
  Hits        17035    17035           
  Misses      11036    11036           
  Partials      971      971           

[thaJeztah]

LGTM, thanks!