chore: release helm chart when the tag starts with helm

[wangxye]

change:

1. release when the tag starts with helm;
2. docker build for helm chart;

[codecov]

Codecov Report

Merging #726 (c6b4d12) into main (e7f310d) will decrease coverage by 0.03%.
Report is 6 commits behind head on main.
The diff coverage is n/a.

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #726      +/-   ##
============================================
- Coverage     57.47%   57.45%   -0.03%     
+ Complexity     1224     1222       -2     
============================================
  Files           131      131              
  Lines          8029     8031       +2     
  Branches        736      736              
============================================
- Hits           4615     4614       -1     
- Misses         3019     3020       +1     
- Partials        395      397       +2     

Components	Coverage Δ
RocketMQ Broker	∅ <ø> (∅)
RocketMQ Common	5.80% <ø> (ø)
RocketMQ Controller	54.88% <ø> (ø)
RocketMQ Proxy	42.75% <ø> (ø)
RocketMQ Store	76.96% <ø> (-0.13%)	⬇️
RocketMQ Stream	∅ <ø> (∅)
RocketMQ Metadata	35.29% <ø> (ø)

see 2 files with indirect coverage changes

[lizhanhui]

Keep original release workflow as it is and add a new workflow to release helm charts