Update changelog for 0.16.1 and update helm charts

[adchia]

What this PR does / why we need it:
Update changelog for 0.16.1 and update helm charts

Which issue(s) this PR fixes:

Fixes #

Does this PR introduce a user-facing change?:

NONE

[codecov-commenter]

Codecov Report

Merging #2135 (fc4729d) into master (36234f1) will increase coverage by 25.60%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           master    #2135       +/-   ##
===========================================
+ Coverage   58.00%   83.60%   +25.60%     
===========================================
  Files         101      101               
  Lines        8124     8248      +124     
===========================================
+ Hits         4712     6896     +2184     
+ Misses       3412     1352     -2060     

Flag	Coverage Δ
integrationtests	74.30% <ø> (?)
unittests	58.00% <ø> (ø)

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

Impacted Files	Coverage Δ
sdk/python/feast/data_source.py	61.29% <0.00%> (+0.40%)	⬆️
sdk/python/feast/online_response.py	87.71% <0.00%> (+1.75%)	⬆️
sdk/python/feast/infra/online_stores/sqlite.py	96.77% <0.00%> (+2.15%)	⬆️
sdk/python/feast/feature.py	72.72% <0.00%> (+3.03%)	⬆️
sdk/python/feast/errors.py	70.00% <0.00%> (+5.00%)	⬆️
sdk/python/feast/infra/provider.py	90.74% <0.00%> (+5.55%)	⬆️
sdk/python/feast/infra/offline_stores/file.py	96.80% <0.00%> (+8.00%)	⬆️
sdk/python/feast/infra/passthrough_provider.py	100.00% <0.00%> (+10.76%)	⬆️
sdk/python/feast/repo_config.py	87.00% <0.00%> (+11.86%)	⬆️
sdk/python/feast/feature_view.py	89.28% <0.00%> (+12.14%)	⬆️
... and 49 more

---

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[achals]

/lgtm

[feast-ci-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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