tools: Don't use strings.Title in chopper

[Eric-Warehime]

Summary

I'm running go1.18 locally and the lint check fails because strings.Title is deprecated in go1.18.

tools/debug/chopper/main.go:134:46: SA1019: strings.Title has been deprecated since Go 1.18 and an alternative has been available since Go 1.0: The rule Title uses for word boundaries does not handle Unicode punctuation properly. Use golang.org/x/text/cases instead. (staticcheck)
	fmt.Printf("%s in first: %d, second: %d\n", strings.Title(rd.what), rd.size1, rd.size2)

Replaced it with cases.Title for English which looks to have the same behavior.

Test Plan

Ran a basic test and it looks correct from what I can tell.

go run ./tools/debug/chopper/main.go ./log_copy.log ~/.algorand/node.
log 
Roots in first: 45, second: 45
Matched roots: 45
Mismatched roots: 0
Other roots in first: 0, second: 0

[codecov]

Codecov Report

Merging #5239 (cd98d3c) into master (7738691) will decrease coverage by 0.05%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #5239      +/-   ##
==========================================
- Coverage   53.57%   53.52%   -0.05%     
==========================================
  Files         441      441              
  Lines       55137    55137              
==========================================
- Hits        29538    29511      -27     
- Misses      23311    23335      +24     
- Partials     2288     2291       +3     

see 12 files with indirect coverage changes

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[bbroder-algo]

Title(language.English).Strings("approved")