Allow setting custom fixed inflation rate to solana-test-validator

[svenski123]

Problem

solana-test-validator allows some configuration of its generated genesis however the inflation is set to the hard-coded default.

Summary of Changes

Add a member to TestValidatorGenesis to allow setting the Inflation object in the generated Genesis.
Add an optional option --inflation-fixed <RATE> to solana-test-validator which when specified sets the inflation to Inflation::new_fixed(RATE) instead of the default.

[0xbrw]

@jstarry is this something we want to enable?

[jstarry]

@jstarry is this something we want to enable?

Yeah makes sense to me and seems useful. Thanks @svenski123!

[jstarry]

Oh can you update the lock files please? You can run this: ./scripts/cargo-for-all-lock-files.sh tree

[svenski123]

Huh, I didn't realise there were multiple Cargo.lock files in the repo. Anyways I've run that script and pushed the commits.

[jstarry]

Some clippy errors need to be fixed

[svenski123]

Fair enough for clippy to complain about sprintf() when strlcpy() will do (or rather Rust equivalents thereof), but the whole point of negating the operator based comparison result was to handle the unordered IEEE-754 cases correctly...
Clippy has been satisfied with PartialOrd::partial_cmp().

[jstarry]

Should have mentioned it's ok to ignore some clippy errors, but looks like the partial cmp approach will work fine

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 10.71429% with 25 lines in your changes missing coverage. Please review.

Project coverage is 83.3%. Comparing base (354071e) to head (8f12b58).
Report is 44 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #6661   +/-   ##
=======================================
  Coverage    83.3%    83.3%           
=======================================
  Files         849      849           
  Lines      379469   379497   +28     
=======================================
+ Hits       316189   316264   +75     
+ Misses      63280    63233   -47     

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[jstarry]

sorry for the delay, lost track of this one