chore: update cosmos-sdk to 0.45.5

[JimLarson]

And transitive update tendermint to 0.34.19.

Refs: Agoric/agoric-sdk#5694

[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (Agoric-45@80bde6a). Click here to learn what that means.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             Agoric-45       #8   +/-   ##
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  Coverage             ?   11.33%           
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  Files                ?       11           
  Lines                ?     1085           
  Branches             ?        0           
============================================
  Hits                 ?      123           
  Misses               ?      956           
  Partials             ?        6           

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