Update pubsub to use new client

[withinboredom]

Description

This updates pubsub to use the new client.

Issue reference

We strive to have all PR being opened based on an issue, where the problem or feature have been discussed prior to
implementation.

Please reference the issue: #36

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Tests pass
• Created/updated tests
• Extended the documentation

[codecov-commenter]

Codecov Report

Merging #98 (ab96eb6) into main (57efb04) will decrease coverage by 1.65%.
The diff coverage is 33.75%.

@@             Coverage Diff              @@
##               main      #98      +/-   ##
============================================
- Coverage     68.36%   66.70%   -1.66%     
- Complexity      448      455       +7     
============================================
  Files            59       59              
  Lines          1571     1682     +111     
============================================
+ Hits           1074     1122      +48     
- Misses          497      560      +63     

Impacted Files	Coverage Δ
src/index.php	0.00% <0.00%> (ø)
src/lib/Client/PromiseHandlingTrait.php	57.14% <0.00%> (+57.14%)	⬆️
src/lib/PubSub/Publish.php	100.00% <ø> (ø)
src/lib/PubSub/Topic.php	85.00% <81.25%> (-15.00%)	⬇️
src/config.php	100.00% <100.00%> (ø)
src/lib/Client/DaprClient.php	53.84% <100.00%> (+53.84%)	⬆️
src/lib/Client/DaprClientBuilder.php	46.66% <100.00%> (+46.66%)	⬆️
src/lib/Client/DaprHttpClient.php	83.33% <100.00%> (+83.33%)	⬆️
src/lib/Client/HttpPubSubTrait.php	100.00% <100.00%> (+100.00%)	⬆️
src/lib/Client/HttpStateTrait.php	0.00% <0.00%> (ø)
... and 8 more

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