update net/dnscrypt-proxy 2.1.3

tb@ ran a bulk with go-1.20rc2 and dnscrypt-proxy is broken due to
quic-go, a library. This update to dnscrypt-proxy 2.1.3 makes it
compatible with go 1.20+ landing in February.

changelog:
https://github.com/DNSCrypt/dnscrypt-proxy/releases/tag/2.1.3

I tested quic against go-1.19.4p1. google made quic and google is listed
as a DoH server.

/etc/dnscrypt-proxy.toml:
--8<---------------cut here---------------start------------->8---
server_names = ['google']

...

## Enable *experimental* support for HTTP/3 (DoH3, HTTP over QUIC)
## Note that, like DNSCrypt but unlike other HTTP versions, this uses
## UDP and (usually) port 443 instead of TCP.

http3 = true
--8<---------------cut here---------------end--------------->8---

OK?

Index: Makefile
===================================================================
RCS file: /cvs/ports/net/dnscrypt-proxy/Makefile,v
retrieving revision 1.61
diff -u -p -u -p -r1.61 Makefile
--- Makefile 8 Nov 2022 11:14:54 -0000 1.61
+++ Makefile 3 Feb 2023 23:57:52 -0000
@@ -2,8 +2,7 @@ COMMENT = flexible DNS proxy with suppor

GH_ACCOUNT = jedisct1
GH_PROJECT = dnscrypt-proxy
-GH_TAGNAME = 2.1.2
-REVISION = 0
+GH_TAGNAME = 2.1.3

CATEGORIES = net

Index: distinfo
===================================================================
RCS file: /cvs/ports/net/dnscrypt-proxy/distinfo,v
retrieving revision 1.34
diff -u -p -u -p -r1.34 distinfo
--- distinfo 3 Aug 2022 01:44:25 -0000 1.34
+++ distinfo 3 Feb 2023 23:57:52 -0000
@@ -1,2 +1,2 @@
-SHA256 (dnscrypt-proxy-2.1.2.tar.gz) = qlX9UrnBuYNAW/mLQux1T11vWbQpupyYEV32F+713qQ=
-SIZE (dnscrypt-proxy-2.1.2.tar.gz) = 6792121
+SHA256 (dnscrypt-proxy-2.1.3.tar.gz) = YWOrMWnt0hWPWF3/LdukFrLSn9S0S0zHlDZfymZqcmo=
+SIZE (dnscrypt-proxy-2.1.3.tar.gz) = 6891950