Accommodate the new OpenSSL behavior when failed to decrypt certs

Description

fixing https://github.com/Azure/WALinuxAgent/issues/3163

If the decryption fails, old version of openssl overwrite the output file(if exist) with empty data while new version of openssl does not overwrite the output file, so output file may contain old certs data and agent process the old certs again. Correcting the behavior by removing temporary state certificate files.

2024-08-28T00:22:15.391660Z ERROR ExtHandler ExtHandler Failed to decrypt /var/lib/waagent/Certificates.p7m (return code: 1)
[stdout]

[stderr]
Error reading SMIME Content Info
4072163C0D7B0000:error:0680008E:asn1 encoding routines:asn1_d2i_read_bio:not enough data:crypto/asn1/a_d2i_fp.c:216:
4072163C0D7B0000:error:0680006E:asn1 encoding routines:b64_read_asn1:decode error:crypto/asn1/asn_mime.c:151:
4072163C0D7B0000:error:068000CB:asn1 encoding routines:SMIME_read_ASN1_ex:asn1 parse error:crypto/asn1/asn_mime.c:500:

2024-08-28T00:22:15.391869Z INFO ExtHandler ExtHandler Removing temporary state certificate files ['/var/lib/waagent/Certificates.p7m', '/var/lib/waagent/Certificates.pem']
2024-08-28T00:22:15.392123Z INFO ExtHandler ExtHandler Removed file /var/lib/waagent/Certificates.p7m
2024-08-28T00:22:15.392267Z INFO ExtHandler ExtHandler Removed file /var/lib/waagent/Certificates.pem
2024-08-28T00:22:15.392632Z INFO ExtHandler Fetch goal state completed

Issue #

PR information

[ ] The title of the PR is clear and informative.
[ ] There are a small number of commits, each of which has an informative message. This means that previously merged commits do not appear in the history of the PR. For information on cleaning up the commits in your pull request, see this page.
[ ] If applicable, the PR references the bug/issue that it fixes in the description.
[ ] New Unit tests were added for the changes made

Quality of Code and Contribution Guidelines

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Codecov Report

Attention: Patch coverage is 90.32258% with 3 lines in your changes missing coverage. Please review.

Project coverage is 72.30%. Comparing base (3aebcdd) to head (2181751). Report is 297 commits behind head on develop.

Files with missing lines	Patch %	Lines
azurelinuxagent/common/utils/cryptutil.py	72.72%	2 Missing and 1 partial :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #3197 +/- ## =========================================== + Coverage 71.97% 72.30% +0.32% =========================================== Files 103 114 +11 Lines 15692 16953 +1261 Branches 2486 2448 -38 =========================================== + Hits 11295 12258 +963 - Misses 3881 4131 +250 - Partials 516 564 +48 ```

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