Mark kind field in application and deployment model as deprecated

[khanhtc1202]

What this PR does:

as title

Why we need it:

The field Kind in application/deployment model should not be used in pipedv1 (plugin-arch piped) to build logic.

Which issue(s) this PR fixes:

Related to #5956

Does this PR introduce a user-facing change?:

• How are users affected by this change:
• Is this breaking change:
• How to migrate (if breaking change):

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 28.16%. Comparing base (da6fce4) to head (ab06f15).
Report is 7 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #6002   +/-   ##
=======================================
  Coverage   28.16%   28.16%           
=======================================
  Files         519      519           
  Lines       55938    55938           
=======================================
  Hits        15757    15757           
  Misses      38931    38931           
  Partials     1250     1250           

Flag	Coverage Δ
.	23.22% <ø> (ø)
.-pkg-app-pipedv1-plugin-kubernetes	66.27% <ø> (ø)
.-pkg-app-pipedv1-plugin-kubernetes_multicluster	67.33% <ø> (ø)
.-pkg-app-pipedv1-plugin-terraform	80.26% <ø> (ø)
.-pkg-app-pipedv1-plugin-wait	35.51% <ø> (ø)
.-pkg-plugin-sdk	50.92% <ø> (ø)
.-tool-actions-gh-release	19.23% <ø> (ø)
.-tool-actions-plan-preview	25.30% <ø> (ø)
.-tool-codegen-protoc-gen-auth	0.00% <ø> (ø)

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[ffjlabo]

LGTM