chore: specify namespace when restarting deployments in remote e2e tests

[ChristopherFry]

This pull request updates the end-to-end testing fixture to specify the namespace when restarting any of the Argo CD Server deployments for the remote tests. This allows any remote end-to-end tests pass that rely on restarting the Argo CD Servers. This includes any tests that adds SSH and TLS certificates.

Previously, the following error would be seen unless the namespace for the context in the kubeconfig was set to the Argo CD namespace:

time="2023-10-31T21:20:32Z" level=error msg="`kubectl rollout restart deployment argocd-server` failed exit status 1: Error from server (NotFound): deployments.apps \"argocd-server\" not found" execID=eb005

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?
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• 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.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (2d70f89) 49.55% compared to head (115fad2) 49.55%.
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #16192   +/-   ##
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  Coverage   49.55%   49.55%           
=======================================
  Files         269      269           
  Lines       46891    46891           
=======================================
+ Hits        23235    23236    +1     
+ Misses      21375    21374    -1     
  Partials     2281     2281           

see 2 files with indirect coverage changes

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[blakepettersson]

LGTM