[CI/infra] Refcache-refresh followup for submodules -2024/02

[chalin]

• Followup to [CI/infra] Refresh refcache entries for 2024/01 #3804 for submodule updates
• Specification:
  • [editorial] Use canonical URL to wiki page in metrics/api opentelemetry-specification#3834
  • Update submodule
• Semconv
  • [editorial] Fix/adjust link to use https rather than http semantic-conventions#645
  • [editorial] Use canonical wikipedia links semantic-conventions#678
  • Update semconv submodule
• OpAMP
  • [editorial] Use canonical link to "ACME End User Client and Code Signing Certificates" opamp-spec#179
  • Update submodule