fix(dev): Make zcash-rpc-diff always check Zebra then zcashd

[teor2345]

Motivation

Sometimes they were in the opposite order in the script, which is confusing when reviewing diffs.

Review

This is a minor usability fix for a developer testing tool.

I used it for the 3 diffs in:
#5808 (comment)

Reviewer Checklist

• Are the PR labels correct?
• Does the code do what the ticket and PR says?
  • Does it change concurrent code, unsafe code, or consensus rules?
• How do you know it works? Does it have tests?

[codecov]

Codecov Report

Merging #5822 (35b48f3) into main (2041fda) will increase coverage by 0.04%.
The diff coverage is n/a.

❗ Current head 35b48f3 differs from pull request most recent head ef7aa5a. Consider uploading reports for the commit ef7aa5a to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5822      +/-   ##
==========================================
+ Coverage   78.69%   78.73%   +0.04%     
==========================================
  Files         308      308              
  Lines       38781    38781              
==========================================
+ Hits        30517    30535      +18     
+ Misses       8264     8246      -18     

[arya2]

@Mergifyio update

[mergify]

update

✅ Branch has been successfully updated

[teor2345]

There shouldn't be any Rust code in this PR, I'll fix it.

[teor2345]

It should be fixed now, I probably caused this by basing my branch off the RPC I was testing.