fix: InfluxDB 2 Cloud CA certificate for all providers

Author: vlastahajek

CHANGELOG.md

@@ -1,4 +1,11 @@
 # Changelog
+## 3.7.0 [in progress]
+### Features
+ - [#125](https://github.com/tobiasschuerg/InfluxDB-Client-for-Arduino/pull/124) - Added credentials to the InfluxDB 1.x validation endpoint (/ping). To leverage this, [enable ping authentication](https://docs.influxdata.com/influxdb/v1.8/administration/config/#ping-auth-enabled-false) 
+
+### Fixes
+ - [#129](https://github.com/tobiasschuerg/InfluxDB-Client-for-Arduino/pull/129) - Updated InfluxDB 2 Cloud CA certificate to trust servers from all cloud providers (AWS, Azure, GCP)
+
 ## 3.6.1 [2020-11-30]
 ### Features
 ### Fixes

src/InfluxDbCloud.h

@@ -27,35 +27,29 @@
 #ifndef _INFLUXDB_CLOUD_H_
 #define _INFLUXDB_CLOUD_H_
 
-// Certificate Authority of InfluxData Cloud 2 servers
+// Root Certificate Authority of InfluxData Cloud 2 servers. 
+// Valid with all providers (AWS, Azure, GCP) 
+// Valid until 30-09-2020 14:01:14
 const char InfluxDbCloud2CACert[] PROGMEM =  R"EOF( 
-
 -----BEGIN CERTIFICATE-----
-MIIEkjCCA3qgAwIBAgIQCgFBQgAAAVOFc2oLheynCDANBgkqhkiG9w0BAQsFADA/
+MIIDSjCCAjKgAwIBAgIQRK+wgNajJ7qJMDmGLvhAazANBgkqhkiG9w0BAQUFADA/
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 -----END CERTIFICATE-----
 )EOF";