3scale proxy show, update and deploy commands

[eguzki]

https://issues.redhat.com/browse/THREESCALE-7997

Fixes #202

[codecov-commenter]

Codecov Report

Merging #347 (3e9344a) into main (ca1e859) will decrease coverage by 2.01%.
The diff coverage is 99.48%.

❗ Current head 3e9344a differs from pull request most recent head 1033e5f. Consider uploading reports for the commit 1033e5f to get more accurate results

@@            Coverage Diff             @@
##             main     #347      +/-   ##
==========================================
- Coverage   98.55%   96.54%   -2.02%     
==========================================
  Files         349      308      -41     
  Lines       17065    15613    -1452     
==========================================
- Hits        16819    15073    -1746     
- Misses        246      540     +294     

Impacted Files	Coverage Δ
lib/3scale_toolbox/commands/proxy_command.rb	94.44% <94.44%> (ø)
lib/3scale_toolbox/commands.rb	100.00% <100.00%> (ø)
...e_toolbox/commands/proxy_command/deploy_command.rb	100.00% <100.00%> (ø)
...ale_toolbox/commands/proxy_command/show_command.rb	100.00% <100.00%> (ø)
...e_toolbox/commands/proxy_command/update_command.rb	100.00% <100.00%> (ø)
...ox/commands/proxy_config_command/deploy_command.rb	100.00% <100.00%> (ø)
...unit/commands/proxy_command/deploy_command_spec.rb	100.00% <100.00%> (ø)
...c/unit/commands/proxy_command/show_command_spec.rb	100.00% <100.00%> (ø)
...unit/commands/proxy_command/update_command_spec.rb	100.00% <100.00%> (ø)
spec/shared_examples.rb	1.44% <0.00%> (-98.56%)	⬇️
... and 79 more

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