www/grafana9: Update to 9.5.5
ChangeLog:
https://grafana.com/blog/2023/06/22/grafana-security-release-for-cve-2023-3128/
PR: 272161
MFH: 2023Q2
Security: fdbe9aec-118b-11ee-908a-6c3be5272acd
(cherry picked from commit d86981321af78b575014891963f626fdca082ebf)