Added "mywalletv1" sub-domain

[pwnter]

I've added mywalletv1 sub-domain which was missing..

On HackTheBox: Instant .apk, I found two subdomains on network_security_config.xml:

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <domain-config cleartextTrafficPermitted="true">
        <domain includeSubdomains="true">mywalletv1.instant.htb</domain>
        <domain includeSubdomains="true">swagger-ui.instant.htb</domain>
    </domain-config>
</network-security-config>