[fix] : fix expired cert for e2e tests

[rahulait]

General:

• Have you removed all sensitive information, including but not limited to access keys and passwords?
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Existing server certificate used in tests expired in october 2024. This PR generates a new cert using the existing key and this certificate is valid for 3 years from now. Steps used to generate the new cert:

openssl req -new -key server.key -out server.csr -subj "/C=US/ST=PA/L=Philadelphia/O=Linode LLC/OU=Linode Test/CN=linode.test"
openssl x509 -req -extfile <(printf "subjectAltName=DNS:linode.test,DNS:www.linode.test") -in server.csr -days 1095 -CA ca.crt -CAkey ca.key -CAcreateserial -out server.crt

Test run after the fix:

[AfterSuite] PASSED [0.024 seconds]
------------------------------

Ran 22 of 23 Specs in 479.251 seconds
SUCCESS! -- 22 Passed | 0 Failed | 0 Pending | 1 Skipped
PASS

Ginkgo ran 1 suite in 8m1.65842278s
Test Suite Passed

Pull Request Guidelines:

1. Does your submission pass tests?
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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.06%. Comparing base (f67f48b) to head (198de5b).
Report is 1 commits behind head on main.

Additional details and impacted files

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  Coverage   56.06%   56.06%           
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  Files          12       12           
  Lines        2349     2349           
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  Hits         1317     1317           
  Misses        881      881           
  Partials      151      151           

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