net/pecl-amqp: Mark DEPRECATED with php74

- Set EXPIRATION_DATE on 2022-11-28

Upstream fixes compatibility in 1.11.0

net/pecl-amqp/Makefile

@@ -7,6 +7,10 @@ CATEGORIES=	net pear
 MAINTAINER=	jnlin@freebsd.cs.nctu.edu.tw
 COMMENT=	PHP extension for AMQP API
 
+# Remove these once upgraded to 1.11.0
+DEPRECATED=	Requires php 7.4 which is set to expire on 2022-11-29
+EXPIRATION_DATE=2022-11-28
+
 LICENSE=	PHP301
 LICENSE_FILE=	${WRKSRC}/LICENSE