chore: remove unneeded setting of client_id for ZAC abonnement in Open Notificaties Docker Compose

[edgarvonk]

Remove unneeded setting of client_id for ZAC abonnement in Open Notificaties Docker Compose as the client_id field is not used anymore by OpenNotificaties. Somewhat related to open-zaak/open-zaak#1694

Solves PZ-5701

[github-actions]

unit-test-results

 86 files  ±0  124 suites  ±0   1m 44s ⏱️ -1s
475 tests ±0  474 ✅ ±0  1 💤 ±0  0 ❌ ±0 
579 runs  ±0  577 ✅ ±0  2 💤 ±0  0 ❌ ±0 

Results for commit 2f8845e. ± Comparison against base commit 2745c42.

[github-actions]

integration-test-results

 31 files  ±0   31 suites  ±0   42s ⏱️ -1s
114 tests ±0  114 ✅ ±0  0 💤 ±0  0 ❌ ±0 
127 runs  ±0  127 ✅ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit 2f8845e. ± Comparison against base commit 2745c42.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 42.18%. Comparing base (2745c42) to head (2f8845e).
Report is 4 commits behind head on main.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##               main    #2791    +/-   ##
==========================================
  Coverage     42.18%   42.18%            
  Complexity     3479     3479            
==========================================
  Files          1334     1334            
  Lines         32258    32258            
  Branches       2975     3035    +60     
==========================================
  Hits          13608    13608            
+ Misses        17829    17427   -402     
- Partials        821     1223   +402     

Flag	Coverage Δ
integrationtests	51.41% <ø> (ø)
unittests	28.19% <ø> (ø)

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