Update roles/matrix-grafana/templates/grafana.ini.j2

Co-authored-by: Aaron Raimist <aaron@raim.ist>

roles/matrix-grafana/templates/grafana.ini.j2

@@ -9,7 +9,7 @@ admin_password = """{{ matrix_grafana_default_admin_password }}"""
 content_security_policy = "{{ matrix_grafana_content_security_policy }}"
 
 # specify content security policy template to customized template
-{% if matrix_synapse_metrics_enabled %}
+{% if matrix_grafana_content_security_policy_customized %}
 content_security_policy_template = """script-src http: https: 'unsafe-inline' 'unsafe-eval' 'strict-dynamic' $NONCE;object-src 'none';font-src 'self';style-src 'self' 'unsafe-inline';img-src 'self' data:;base-uri 'self';connect-src 'self' grafana.com;manifest-src 'self';media-src 'none';form-action 'self';"""
 {% else %}
 {% endif %}