LibCrypto+Everywhere: Rename *BigInteger::to_base to to_base_deprecated

Author: https://github.com/trflynn89
Commit: 0ddc2e1f50
Pull-request: https://github.com/SerenityOS/serenity/pull/17014
Reviewed-by: https://github.com/linusg ✅

Userland/Libraries/LibJS/Runtime/Date.cpp

@@ -305,7 +305,7 @@ static i64 clip_bigint_to_sane_time(Crypto::SignedBigInteger const& value)
         return NumericLimits<i64>::max();
 
     // FIXME: Can we do this without string conversion?
-    return value.to_base(10).to_int<i64>().value();
+    return value.to_base_deprecated(10).to_int<i64>().value();
 }
 
 // 21.4.1.8 GetNamedTimeZoneEpochNanoseconds ( timeZoneIdentifier, year, month, day, hour, minute, second, millisecond, microsecond, nanosecond ), https://tc39.es/ecma262/#sec-getnamedtimezoneepochnanoseconds