Update exipred certs used for FAPI OIDC conformance test suite

[mpmadhavig]

$subject

Steps followed:

1. Get the 2 cert sets.
2. Extract the <cert-set-id> assigned for the key set from the folder name.
   ex: oQ4KoaavpOuoE7rvQsZEOV_Expire-29_06_2025 -> key = oQ4KoaavpOuoE7rvQsZEOV
3. Generate the jwks endpoint URL.
   ex: https://keystore.openbankingtest.org.uk/0015800001HQQrZAAX/<cert-set-id>.jwks
4. Update serverjwks.py and serverjwks2.py using the cert values obtained from the above URL.
5. Update all enc, sig, tls certs.
6. Update client_configs.py jwks keys using the private keys in cert sets folders.
   i. For sig keys, use the signing.key file and get the jwks using a pem to jwks tool. ex: https://tribestream.io/tools/pem2jwk/
   ii. For enc keys get the .key file under the encryption related folder or file (this can vary from key set to key set) and covert to jwks.
7. Update client_configs.py mtls cert-key values using the transport.key and transport.pem files.

Successful build:

• https://github.com/mpmadhavig/product-is/actions/runs/9679784212

[mpmadhavig]

Build related: https://github.com/wso2/product-is/actions/runs/9680534622