[ENHANCEMENT] Improve the performance JWE + JWS implementation

**📝 Feature Description**
We need to optimize the implementation of JWE and JWS, which currently uses the [`josekit`](https://docs.rs/josekit/latest/josekit/) library. The primary goal is to improve performance without altering the encryption function's characteristics.

**🔨 Possible Implementation**
- Research alternative libraries or methods for JWE and JWS implementation that may offer better performance.
- Implement new solutions while maintaining the current encryption characteristics.
- Compare the performance of new implementations against the existing one using the benchmarks provided in `benches/encryption.rs`.
- Ensure that any new implementation maintains compatibility with the existing system.

**🔖 Note:**
Benchmarks for JWE and JWS are available in `benches/encryption.rs`. Please refer to these benchmarks when implementing and testing new solutions to ensure accurate performance comparisons.

### Submission Process:
- Ask the maintainers for assignment of the issue, you can request for assignment by commenting on the issue itself.
- Once assigned, submit a pull request (PR).
- Maintainers will review and provide feedback, if any.
- Maintainers can unassign issues due to inactivity, [read more here](https://github.com/juspay/hyperswitch/wiki/Hacktoberfest-Contribution-Rules).
- For this issue, please raise a PR to juspay/hyperswitch-card-vault.

Refer [here](https://github.com/juspay/hyperswitch/blob/main/docs/TERMS_OF_CONTEST.md) for Terms and conditions for the contest.

Start by reviewing the current JWE and JWS implementation using josekit and the benchmarks in benches/encryption.rs. Research alternative libraries or implementation methods, then compare performance while checking compatibility and preservation of the existing encryption characteristics. The work is complete when a faster compatible approach is demonstrated by the benchmarks.

Written by the indexing model from the issue text.