fix: uniformity in ownership and borrowing patterns for *_update_meta args

[Farhad-Shabani]

Description

This is actually part of #972. I missed mentioning it there.

Integration tests: informalsystems/basecoin-rs#151

---

PR author checklist:

• Linked to GitHub issue.
• Tagged one reviewer who will be the one responsible for shepherding this PR.

Reviewer checklist:

• Reviewed Files changed in the GitHub PR explorer.
• Manually tested (in case integration/unit/mock tests are absent).

[codecov]

Codecov Report

Attention: 6 lines in your changes are missing coverage. Please review.

Comparison is base (0c1e8a9) 66.70% compared to head (2330339) 66.71%.

Files	Patch %	Lines
ibc-clients/ics07-tendermint/src/client_state.rs	66.66%	6 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1072   +/-   ##
=======================================
  Coverage   66.70%   66.71%           
=======================================
  Files         204      204           
  Lines       20427    20447   +20     
=======================================
+ Hits        13626    13641   +15     
- Misses       6801     6806    +5     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.