Issue:
Bug: [BUG] WASM build is failing



### Bug Description

WASM build fails when I run `make euclid-wasm`

### Expected Behavior

Build should be completed successfully

### Actual Behavior

Build Fails

### Steps To Reproduce

Provide an unambiguous set of steps to reproduce this bug. Include code or configuration to reproduce, if relevant.
Run `make euclid-wasm`

### Context For The Bug

_No response_

### Environment

Are you using hyperswitch hosted version? Yes/No
If yes, please provide the value of the `x-request-id` response header to help us debug your issue.

If not (or if building/running locally), please provide the following details:
1. Operating System or Linux distribution:
2. Rust version (output of `rustc --version`): ``
3. App version (output of `cargo r --features vergen -- --version`): ``


### Have you spent some time checking if this bug has been raised before?

- [X] I checked and didn't find a similar issue

### Have you read the Contributing Guidelines?

- [X] I have read the [Contributing Guidelines](https://github.com/juspay/hyperswitch/blob/main/docs/CONTRIBUTING.md)

### Are you willing to submit a PR?

Yes, I am willing to submit a PR!

Pull request description:
## Type of Change
<!-- Put an `x` in the boxes that apply -->

- [x] Bugfix
- [ ] New feature
- [ ] Enhancement
- [ ] Refactoring
- [ ] Dependency updates
- [ ] Documentation
- [ ] CI/CD

## Description
<!-- Describe your changes in detail -->
Fixed `FromStr` implementation on `CardNumber` to work with wasm related feature configs.

### Additional Changes

- [ ] This PR modifies the API contract
- [ ] This PR modifies the database schema
- [ ] This PR modifies application configuration/environment variables

<!--
Provide links to the files with corresponding changes.

Following are the paths where you can find config files:
1. `config`
2. `crates/router/src/configs`
3. `loadtest/config`
-->


## Motivation and Context
<!--
Why is this change required? What problem does it solve?
If it fixes an open issue, please link to the issue here.

If you don't have an issue, we'd recommend starting with one first so the PR
can focus on the implementation (unless it is an obvious bug or documentation fix
that will have little conversation).
-->


## How did you test it?
<!--
Did you write an integration/unit/API test to verify the code changes?
Or did you test this change manually (provide relevant screenshots)?
-->
Run `make euclid-wasm` to verify if Wasm build was successful.
<img width="1180" alt="Screenshot 2024-03-13 at 3 12 07 PM" src="https://github.com/juspay/hyperswitch/assets/61539176/480b4373-36ba-401a-a18c-849541c524d7">


## Checklist
<!-- Put an `x` in the boxes that apply -->

- [x] I formatted the code `cargo +nightly fmt --all`
- [x] I addressed lints thrown by `cargo clippy`
- [x] I reviewed the submitted code
- [ ] I added unit tests for my changes where possible
- [ ] I added a [CHANGELOG](/CHANGELOG.md) entry if applicable


Testing:

Run `make euclid-wasm` to verify if Wasm build was successful.
<img width="1180" alt="Screenshot 2024-03-13 at 3 12 07 PM" src="https://github.com/juspay/hyperswitch/assets/61539176/480b4373-36ba-401a-a18c-849541c524d7">

Patch:
diff --git a/crates/cards/src/validate.rs b/crates/cards/src/validate.rs
index 14d4c6e4c12..08ad127047c 100644
--- a/crates/cards/src/validate.rs
+++ b/crates/cards/src/validate.rs
@@ -2,7 +2,7 @@ use std::{fmt, ops::Deref, str::FromStr};
 
 use masking::{PeekInterface, Strategy, StrongSecret, WithType};
 #[cfg(not(target_arch = "wasm32"))]
-use router_env::logger;
+use router_env::{logger, which as router_env_which, Env};
 use serde::{Deserialize, Deserializer, Serialize};
 use thiserror::Error;
 
@@ -52,14 +52,16 @@ impl FromStr for CardNumber {
 
     fn from_str(s: &str) -> Result<Self, Self::Err> {
         // Valid test cards for threedsecureio
-        let valid_test_cards = match router_env::which() {
-            router_env::Env::Development | router_env::Env::Sandbox => vec![
-                "4000100511112003",
-                "6000100611111203",
-                "3000100811111072",
-                "9000100111111111",
-            ],
-            router_env::Env::Production => vec![],
+        let valid_test_cards = vec![
+            "4000100511112003",
+            "6000100611111203",
+            "3000100811111072",
+            "9000100111111111",
+        ];
+        #[cfg(not(target_arch = "wasm32"))]
+        let valid_test_cards = match router_env_which() {
+            Env::Development | Env::Sandbox => valid_test_cards,
+            Env::Production => vec![],
         };
         if luhn::valid(s) || valid_test_cards.contains(&s) {
             let cc_no_whitespace: String = s.split_whitespace().collect();