fix: resolve the failing e2e appset tests for ksonnet applications

[reggie-k]

ksonnet apps were deleted from the argocd-examples-repo:
argoproj/argocd-example-apps@ce918f9

So now ksonnet-related e2e tests are failing.
Removed ksonnet apps from the e2e tests.

Checklist:

• Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this does not need to be in the release notes.
• The title of the PR states what changed and the related issues number (used for the release note).
• The title of the PR conforms to the Toolchain Guide
• I've included "Closes [ISSUE #]" or "Fixes [ISSUE #]" in the description to automatically close the associated issue.
• I've updated both the CLI and UI to expose my feature, or I plan to submit a second PR with them.
• Does this PR require documentation updates?
• I've updated documentation as required by this PR.
• I have signed off all my commits as required by DCO
• I have written unit and/or e2e tests for my change. PRs without these are unlikely to be merged.
• My build is green (troubleshooting builds).
• My new feature complies with the feature status guidelines.
• I have added a brief description of why this PR is necessary and/or what this PR solves.
• Optional. My organization is added to USERS.md.
• Optional. For bug fixes, I've indicated what older releases this fix should be cherry-picked into (this may or may not happen depending on risk/complexity).

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 55.33%. Comparing base (606bd5b) to head (d1fa787).
Report is 6 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #21580   +/-   ##
=======================================
  Coverage   55.33%   55.33%           
=======================================
  Files         339      339           
  Lines       57172    57172           
=======================================
  Hits        31636    31636           
  Misses      22818    22818           
  Partials     2718     2718           

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[crenshaw-dev]

/cherry-pick release-2.14

[crenshaw-dev]

/cherry-pick release-2.13

[crenshaw-dev]

/cherry-pick release-2.12

[crenshaw-dev]

/cherry-pick release-2.11