Update Cosmos SDK to 0.42.5, fix ENV flag binding

[iramiller]

Description

• Updates Cosmos SDK to 0.42.5.
• Fixes flag to ENV binding using PIO_ prefix
• Fixes help text issue on marker grant access cli command

closes: #320

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Before we can merge this PR, please make sure that all the following items have been
checked off. If any of the checklist items are not applicable, please leave them but
write a little note why.

• Targeted PR against correct branch (see CONTRIBUTING.md)
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Wrote unit and integration tests
• Updated relevant documentation (docs/) or specification (x/<module>/spec/)
• Added relevant godoc comments.
• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md
• Re-reviewed Files changed in the Github PR explorer
• Review Codecov Report in the comment section below once CI passes

[codecov]

Codecov Report

Merging #337 (a7bd5bb) into main (74607b1) will decrease coverage by 0.01%.
The diff coverage is 45.00%.

@@            Coverage Diff             @@
##             main     #337      +/-   ##
==========================================
- Coverage   50.75%   50.73%   -0.02%     
==========================================
  Files         127      127              
  Lines       11414    11433      +19     
==========================================
+ Hits         5793     5801       +8     
- Misses       5056     5063       +7     
- Partials      565      569       +4     

Impacted Files	Coverage Δ
cmd/provenanced/cmd/root.go	59.11% <42.10%> (-2.00%)	⬇️
x/marker/client/cli/tx.go	57.26% <100.00%> (ø)