Rename proto-compiler cli arg

[CharlyCst]

Changed clone-sdk --path to clone-sdk --out to match readme.

Closes: #419

Description

Rename path to out in order to match Readme command examples.

The shortand is -o, so I assume that the intended argument was --out and not --path.

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For contributor use:

• Updated the Unreleased section of CHANGELOG.md with the issue.
• If applicable: Unit tests written, added test to CI.
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Updated relevant documentation (docs/) and code comments.
• Re-reviewed Files changed in the Github PR explorer.

[codecov-io]

Codecov Report

Merging #420 (b39c5d9) into master (b1b37f5) will increase coverage by 22.8%.
The diff coverage is 67.5%.

@@            Coverage Diff            @@
##           master    #420      +/-   ##
=========================================
+ Coverage    13.6%   36.5%   +22.8%     
=========================================
  Files          69     154      +85     
  Lines        3752   11092    +7340     
  Branches     1374    4129    +2755     
=========================================
+ Hits          513    4051    +3538     
- Misses       2618    6394    +3776     
- Partials      621     647      +26     

Impacted Files	Coverage Δ
modules/src/events.rs	0.0% <0.0%> (ø)
modules/src/ics02_client/events.rs	0.0% <ø> (ø)
modules/src/ics02_client/msgs.rs	0.0% <0.0%> (ø)
modules/src/ics02_client/raw.rs	0.0% <0.0%> (ø)
modules/src/ics03_connection/error.rs	13.6% <0.0%> (-19.7%)	⬇️
modules/src/ics04_channel/error.rs	75.0% <ø> (+50.0%)	⬆️
modules/src/ics04_channel/msgs/chan_open_try.rs	67.0% <ø> (ø)
modules/src/ics04_channel/msgs/recv_packet.rs	63.5% <ø> (ø)
modules/src/ics04_channel/msgs/timeout.rs	69.2% <ø> (ø)
modules/src/ics04_channel/packet.rs	70.4% <ø> (+70.4%)	⬆️
... and 282 more

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[romac]

Thanks @CharlyCst!