Make x509_req_test ANSI Compatible

Update the `x509_req_test` to ensure ANSI compatibility. The integrated certificate string was too long, so the PEM certificate has been moved to `certs/x5

Make x509_req_test ANSI Compatible

Update the `x509_req_test` to ensure ANSI compatibility. The integrated certificate string was too long, so the PEM certificate has been moved to `certs/x509-req-detect-invalid-version.pem`. The test have been updated to load this certificate from the file on disk.

Reviewed-by: Neil Horman <nhorman@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/24677)

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