Renaming streaming subscription to "subscribeToTopic"

[artur-ciocanu]

Description

Renaming streaming subscription to "subscribeToTopic". This should align better with other Dapr SDKs and ensure that is more ergonomic.

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 this PR will close: N/A

Checklist

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

• Code compiles correctly
• Created/updated tests
• Extended the documentation

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.93%. Comparing base (d759c53) to head (829f85b).
⚠️ Report is 251 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1626      +/-   ##
============================================
+ Coverage     76.91%   78.93%   +2.02%     
- Complexity     1592     2083     +491     
============================================
  Files           145      227      +82     
  Lines          4843     6277    +1434     
  Branches        562      692     +130     
============================================
+ Hits           3725     4955    +1230     
- Misses          821      970     +149     
- Partials        297      352      +55     

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[artur-ciocanu]

@dapr/approvers-java-sdk and @dapr/maintainers-java-sdk could you please take a look. I think this should be the final name for streaming subscription and it aligns with other SDKs nicely.

@alicejgibbons could you also please take a look.

Thank you 🙇