telegraf: Upgrade package telegraf to version 1.20.2

Signed-off-by: Jonathan Pagel <jonny_tischbein@systemli.org>

utils/telegraf/Makefile

@@ -3,12 +3,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=telegraf
-PKG_VERSION:=1.19.1
+PKG_VERSION:=1.20.2
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://codeload.github.com/influxdata/telegraf/tar.gz/v$(PKG_VERSION)?
-PKG_HASH:=cec43bb0acfff8b4c963ffec6e3eab44ffb52c8f34e6a697207977cfd05882aa
+PKG_HASH:=3b0db9f48a76bb5076eded0ceab6ea568b295bbc525cdd8ad1ecf700ef317c18
 
 PKG_MAINTAINER:=Jonathan Pagel <jonny_tischbein@systemli.org>
 PKG_LICENSE:=MIT