xcb-proto: adjust to automake 1.16.4 changes

srcpkgs/xcb-proto/patches/automake.patch

@@ -0,0 +1,15 @@
+Adjust to automake 1.16.4 changes
+
+Source:
+https://gitlab.freedesktop.org/xorg/proto/xcbproto/-/merge_requests/25
+
+--- a/xcb-proto.pc.in	2020-10-09 00:29:51.000000000 +0200
++++ b/xcb-proto.pc.in	2021-10-17 08:41:54.133860291 +0200
+@@ -4,6 +4,7 @@
+ datadir=@datadir@
+ libdir=@libdir@
+ xcbincludedir=${pc_sysrootdir}@xcbincludedir@
++PYTHON_PREFIX=@PYTHON_PREFIX@
+ pythondir=${pc_sysrootdir}@pythondir@
+ 
+ Name: XCB Proto

srcpkgs/xcb-proto/template

@@ -1,7 +1,7 @@
 # Template file for 'xcb-proto'
 pkgname=xcb-proto
 version=1.14.1
-revision=2
+revision=3
 wrksrc="xcbproto-${pkgname}-${version}"
 build_style=gnu-configure
 hostmakedepends="python3 automake"