Fix / update helm chart workflows to push the feast python server

[adchia]

What this PR does / why we need it:
The existing script does not successfully run for a variety of reasons. Also, it does not package and push the python feature server. This fixes those (though requires we remove old versions of the helm chart for the java feature server due to weird versioning issues)

Which issue(s) this PR fixes:

Fixes #

Does this PR introduce a user-facing change?:

NONE

[codecov-commenter]

Codecov Report

Merging #2273 (370ae8f) into master (6e30457) will increase coverage by 0.20%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2273      +/-   ##
==========================================
+ Coverage   85.82%   86.02%   +0.20%     
==========================================
  Files         116      116              
  Lines        9790     9809      +19     
==========================================
+ Hits         8402     8438      +36     
+ Misses       1388     1371      -17     

Flag	Coverage Δ
integrationtests	74.81% <ø> (-0.09%)	⬇️
unittests	58.59% <ø> (+0.07%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
sdk/python/feast/on_demand_feature_view.py	95.33% <0.00%> (+0.12%)	⬆️
sdk/python/feast/registry.py	85.17% <0.00%> (+0.67%)	⬆️
sdk/python/feast/base_feature_view.py	78.94% <0.00%> (+0.68%)	⬆️
sdk/python/feast/feature_view.py	92.02% <0.00%> (+1.24%)	⬆️
sdk/python/feast/saved_dataset.py	82.45% <0.00%> (+1.75%)	⬆️
sdk/python/feast/infra/online_stores/datastore.py	90.56% <0.00%> (+1.88%)	⬆️
sdk/python/feast/feature_service.py	86.27% <0.00%> (+3.92%)	⬆️
sdk/python/feast/entity.py	78.40% <0.00%> (+4.00%)	⬆️

---

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 6e30457...370ae8f. Read the comment docs.

[felixwang9817]

/lgtm

[feast-ci-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: adchia, felixwang9817

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [adchia,felixwang9817]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment