domoticz: update to 2020.2

Signed-off-by: David Woodhouse <dwmw2@infradead.org>

utils/domoticz/patches/012-minizip-overflow.patch

@@ -0,0 +1,46 @@
+From 3c23a7863c0b01273d4c36423769443ea7e4a7bb Mon Sep 17 00:00:00 2001
+From: David Woodhouse <dwmw2@infradead.org>
+Date: Fri, 5 Jun 2020 15:02:41 +0100
+Subject: [PATCH 1/2] unzip: reduce file name size to 65535 to work with
+ external minizip
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The external minizip project has changed the unzGetCurrentFileInfo()
+function to take a uint16_t as the filename size, instead of a uLong
+as in the original version in zlib.
+
+(Reported as https://github.com/nmoinvaz/minizip/issues/490 but it
+was 3½ years ago and might be too late to fix it now, although changing
+it back to a *larger* type is a lot safer than reducing the size, and
+perhaps they should.)
+
+This means that our 65536-byte buffer gets truncated to zero, as the
+compiler tells us when we build agaisnt the external minizip:
+
+domoticz/main/unzip_stream.h:140:50: warning: conversion from ‘long unsigned int’ to ‘uint16_t’ {aka ‘short unsigned int’} changes value from ‘65536’ to ‘0’ [-Woverflow]
+  140 |     unzGetCurrentFileInfo(handler_, &info, path, sizeof(path), NULL, 0, NULL, 0);
+      |                                                  ^~~~~~~~~~~~
+
+Reduce the buffer size to 65535 bytes instead.
+---
+ main/unzip_stream.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/main/unzip_stream.h b/main/unzip_stream.h
+index 136fcefd9..813f2489a 100644
+--- a/main/unzip_stream.h
++++ b/main/unzip_stream.h
+@@ -135,7 +135,7 @@ namespace clx {
+ 		basic_unzip_stream& open(handler_type h) {
+ 			handler_ = h;
+ 			if (handler_) {
+-				char path[65536];
++				char path[65535];
+ 				unz_file_info info;
+ 				unzGetCurrentFileInfo(handler_, &info, path, sizeof(path), NULL, 0, NULL, 0);
+ 				path_ = path;
+-- 
+2.26.2
+