all: upgrade AWS dependency

[vangent]

Fixed #2974.

[codecov]

Codecov Report

Merging #2975 (cec8e5f) into master (9529703) will increase coverage by 0.06%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2975      +/-   ##
==========================================
+ Coverage   69.58%   69.65%   +0.06%     
==========================================
  Files         111      111              
  Lines       11556    11556              
==========================================
+ Hits         8041     8049       +8     
+ Misses       2853     2843      -10     
- Partials      662      664       +2     

Impacted Files	Coverage Δ
docstore/docstore.go	87.22% <0.00%> (-2.21%)	⬇️
pubsub/mempubsub/mem.go	81.81% <0.00%> (+1.65%)	⬆️
runtimevar/awssecretsmanager/awssecretsmanager.go	74.19% <0.00%> (+2.41%)	⬆️
server/health/sqlhealth/sqlhealth.go	78.37% <0.00%> (+21.62%)	⬆️

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