Update Root Certificate (#7932)

The root certificate used in the example to connect to api.github.com has expired.
A new certificate was issued on March 3, 2021 and should be valid for a year.

libraries/ESP8266WiFi/examples/HTTPSRequest/HTTPSRequest.ino

@@ -28,27 +28,33 @@ const int httpsPort = 443;
 // DigiCert High Assurance EV Root CA
 const char trustRoot[] PROGMEM = R"EOF(
 -----BEGIN CERTIFICATE-----
-MIIDxTCCAq2gAwIBAgIQAqxcJmoLQJuPC3nyrkYldzANBgkqhkiG9w0BAQUFADBs
-MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
-d3cuZGlnaWNlcnQuY29tMSswKQYDVQQDEyJEaWdpQ2VydCBIaWdoIEFzc3VyYW5j
-ZSBFViBSb290IENBMB4XDTA2MTExMDAwMDAwMFoXDTMxMTExMDAwMDAwMFowbDEL
-MAkGA1UEBhMCVVMxFTATBgNVBAoTDERpZ2lDZXJ0IEluYzEZMBcGA1UECxMQd3d3
-LmRpZ2ljZXJ0LmNvbTErMCkGA1UEAxMiRGlnaUNlcnQgSGlnaCBBc3N1cmFuY2Ug
-RVYgUm9vdCBDQTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMbM5XPm
-+9S75S0tMqbf5YE/yc0lSbZxKsPVlDRnogocsF9ppkCxxLeyj9CYpKlBWTrT3JTW
-PNt0OKRKzE0lgvdKpVMSOO7zSW1xkX5jtqumX8OkhPhPYlG++MXs2ziS4wblCJEM
-xChBVfvLWokVfnHoNb9Ncgk9vjo4UFt3MRuNs8ckRZqnrG0AFFoEt7oT61EKmEFB
-Ik5lYYeBQVCmeVyJ3hlKV9Uu5l0cUyx+mM0aBhakaHPQNAQTXKFx01p8VdteZOE3
-hzBWBOURtCmAEvF5OYiiAhF8J2a3iLd48soKqDirCmTCv2ZdlYTBoSUeh10aUAsg
-EsxBu24LUTi4S8sCAwEAAaNjMGEwDgYDVR0PAQH/BAQDAgGGMA8GA1UdEwEB/wQF
-MAMBAf8wHQYDVR0OBBYEFLE+w2kD+L9HAdSYJhoIAu9jZCvDMB8GA1UdIwQYMBaA
-FLE+w2kD+L9HAdSYJhoIAu9jZCvDMA0GCSqGSIb3DQEBBQUAA4IBAQAcGgaX3Nec
-nzyIZgYIVyHbIUf4KmeqvxgydkAQV8GK83rZEWWONfqe/EW1ntlMMUu4kehDLI6z
-eM7b41N5cdblIZQB2lWHmiRk9opmzN6cN82oNLFpmyPInngiK3BD41VHMWEZ71jF
-hS9OMPagMRYjyOfiZRYzy78aG6A9+MpeizGLYAiJLQwGXFK3xPkKmNEVX58Svnw2
-Yzi9RKR/5CYrCsSXaQ3pjOLAEFe4yHYSkVXySGnYvCoCWw9E1CAx2/S6cCZdkGCe
-vEsXCS+0yx5DaMkHJ8HSXPfqIbloEpw8nL+e/IBcm2PN7EeqJSdnoDfzAIJ9VNep
-+OkuE6N36B9K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 -----END CERTIFICATE-----
 )EOF";
 X509List cert(trustRoot);