fix: subscription update logic

[hwjiangkai]

What problem does this PR solve?

Issue Number: close #xxx

Problem Summary

What is changed and how does it work?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

[codecov]

Codecov Report

Merging #424 (b2962fc) into main (2a78cb5) will increase coverage by 0.03%.
The diff coverage is 12.50%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #424      +/-   ##
==========================================
+ Coverage   57.71%   57.74%   +0.03%     
==========================================
  Files         180      181       +1     
  Lines       14614    14667      +53     
==========================================
+ Hits         8434     8470      +36     
- Misses       5552     5573      +21     
+ Partials      628      624       -4     

Impacted Files	Coverage Δ
internal/gateway/proxy/proxy.go	23.18% <0.00%> (-1.92%)	⬇️
...ve/transform/action/strings/capitalize_sentence.go	100.00% <100.00%> (ø)
internal/primitive/transform/runtime/init.go	94.87% <100.00%> (+0.13%)	⬆️
internal/timer/timingwheel/timingwheel.go	79.80% <0.00%> (+0.76%)	⬆️
internal/controller/eventbus/eventlog/eventlog.go	68.22% <0.00%> (+1.95%)	⬆️
internal/trigger/reader/reader.go	80.15% <0.00%> (+3.81%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update b52b795...b2962fc. Read the comment docs.