Add Istio 1.2 conformance report

[howardjohn]

What type of PR is this? /area conformance

What this PR does / why we need it: Shows our support for v1.2

Which issue(s) this PR fixes:

Fixes #

Does this PR introduce a user-facing change?:

NONE

[mikemorris]

/lgtm

[mikemorris]

/lgtm

[arkodg]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: arkodg, howardjohn

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• ~~conformance/OWNERS~~ [arkodg,howardjohn]

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[arkodg]

seeing an error

./conformance/reports/v1.2.0/istio-istio/experimental-1.24-default-report.yaml
  125:24    error    no new line character at the end of file  (new-line-at-end-of-file)
 [0;31mTest FAILED: hack/../hack/verify-yamllint.sh 
 [0;31mSummary of failed tests:
[0;31m- hack/../hack/verify-yamllint.sh
make: *** [Makefile:117: verify] Error 1

cc @mikemorris @howardjohn

[mikemorris]

/lgtm