add cert chain

Author: iblacksand

.github/workflows/check-standard.yaml

@@ -34,14 +34,18 @@ jobs:
         run: |
           # Download or access the certificate
           echo "${{ secrets.WEBSITE_CERT }}" > website_cert.pem
+           echo "${{ secrets.CERT_CHAIN }}" > website_cert_chain.pem
   
           # Add the certificate to the system's trusted certificates
           sudo cp website_cert.pem /usr/local/share/ca-certificates/website_cert.crt
+          sudo cp website_cert_chain.pem /usr/local/share/ca-certificates/website_cert_chain.crt
           sudo update-ca-certificates
 
           # Verify the certificate is trusted
           openssl verify /usr/local/share/ca-certificates/website_cert.crt
-        
+          openssl verify /usr/local/share/ca-certificates/website_cert_chain.crt
+        shell: bash
+      
       - uses: actions/checkout@v3
 
       - uses: r-lib/actions/setup-pandoc@v2