CDRIVER-2153 Install our custom CA to the system trust store

This will only work on certain ubuntu versions

Author: bjori

.evergreen/run-tests.sh

@@ -18,7 +18,12 @@ fi
 if [ "$SSL" != "nossl" ]; then
    export MONGOC_TEST_SSL_WEAK_CERT_VALIDATION="on"
    export MONGOC_TEST_SSL_PEM_FILE="tests/x509gen/client.pem"
-   export MONGOC_TEST_SSL_CA_FILE="tests/x509gen/ca.pem"
+   sudo cp tests/x509gen/ca.pem /usr/local/share/ca-certificates/cdriver.crt || true
+   if [ -f /usr/local/share/ca-certificates/cdriver.crt ]; then
+      sudo update-ca-certificates
+   else
+      export MONGOC_TEST_SSL_CA_FILE="tests/x509gen/ca.pem"
+   fi
 fi
 
 export MONGOC_ENABLE_MAJORITY_READ_CONCERN=on