Update EIP-5593: Move to Stagnant (ethereum#7595)

Updating EIPS/eip-5593.md to status stagnant

EIPS/eip-5593.md

@@ -4,7 +4,7 @@ title: Restrict Ethereum Provider API Injection
 description: Wallet guidance for restricting Ethereum Provider API access to secure contexts for improved privacy and security for wallet users.
 author: Yan Zhu (@diracdeltas), Brian R. Bondy (@bbondy), Andrea  Brancaleoni (@thypon), Kyle Den Hartog (@kdenhartog)
 discussions-to: https://ethereum-magicians.org/t/rfc-limiting-provider-object-injection-to-secure-contexts/10670
-status: Draft
+status: Stagnant
 type: Standards Track
 category: Interface
 created: 2022-09-05