build: fix influxdb download url (backport #190) (#192)

This is an automatic backport of pull request #190 done by [Mergify](https://mergify.io).


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Author: mergify[bot]

layers/layer1_metrics/0020_influxdb/Makefile.mk

@@ -4,8 +4,8 @@ include $(MFEXT_HOME)/share/package.mk
 export NAME=influxdb
 export VERSION=1.7.9-1
 export EXTENSION=tar.gz
-export CHECKTYPE=SHA256
-export CHECKSUM=8f7db67bc966815acee81799b5b2db200686f9315acf3dfb3486bd183ec13d35
+export CHECKTYPE=MD5
+export CHECKSUM=f7796c193739367b02b53cc7a9000d83
 DESCRIPTION=\
 INFLUXDB is an open source time series database with no external dependencies. It's useful for recording metrics, events, and performing analytics
 WEBSITE=https://www.influxdata.com

layers/layer1_metrics/0020_influxdb/sources

@@ -1 +1 @@
-https://dl.influxdata.com/influxdb/releases/influxdb-1.7.9_linux_amd64.tar.gz
+https://github.com/metwork-framework/external_sources/blob/master/influxdb-1.7.9-1.tar.gz?raw=true