Update Mozilla CCADB URL in CertStore example

Thanks to @jpoikela for esp8266/Arduino#9264

Author: earlephilhower

libraries/WiFi/examples/BearSSL_CertStore/certs-from-mozilla.py

@@ -30,7 +30,7 @@
     raise Exception("You need to have openssl in PATH, installable from https://www.openssl.org/")
 
 # Mozilla's URL for the CSV file with included PEM certs
-mozurl = "https://ccadb-public.secure.force.com/mozilla/IncludedCACertificateReportPEMCSV"
+mozurl = "https://ccadb.my.salesforce-sites.com/mozilla/IncludedCACertificateReportPEMCSV"
 
 # Load the names[] and pems[] array from the URL
 names = []