bump sdk to v0.44.5

[yun-yeo]

Summary of changes

Bump SDK to v0.44.5 with iavl bug fix

Report of required housekeeping

• Github issue OR spec proposal link
• Wrote tests
• Updated API documentation (client/lcd/swagger-ui/swagger.yaml)
• Added a relevant changelog entry: clog add [section] [stanza] [message]

---

(FOR ADMIN) Before merging

• Added appropriate labels to PR
• Squashed all commits, uses message "Merge pull request #XYZ: [title]" (coding standards)
• Confirm added tests are consistent with the intended behavior of changes
• Ensure all tests pass

[codecov]

Codecov Report

Merging #620 (3abab5b) into main (c080a55) will decrease coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #620      +/-   ##
==========================================
- Coverage   44.74%   44.71%   -0.03%     
==========================================
  Files         120      120              
  Lines        6969     6969              
==========================================
- Hits         3118     3116       -2     
- Misses       3613     3614       +1     
- Partials      238      239       +1     

Impacted Files	Coverage Δ
x/oracle/tally.go	86.48% <0.00%> (-5.41%)	⬇️