fix(apple-silicon): increase timeout for server creation

[reda-maizate]

Problem occured:
While trying to create a M2-L server using Terraform and the Scaleway provider, I got a timeout after 2 minutes which seems short for a server creation. With a timeout this short, it makes the developer experience quite bad because the Apple Silicon's server needs to be used at least an entire day (24 hours) before I can destroy them.

Solutions:
I found 2 solutions, 1 short term and 1 long term. Here there are:

1. Short term: We can fix this issue easily by adding this piece of code in the scaleway_apple_silicon_server resource:

resource scaleway_apple_silicon_server "server" {
...
timeouts {
    create = "20m" 
  }
...
}

2. Long term: We can also just increase the duration of the timeout to 20 minutes, the default for a creation in Terraform (source here: https://developer.hashicorp.com/terraform/plugin/sdkv2/resources/retries-and-customizable-timeouts#default-timeouts-and-deadline-exceeded-errors).

I recommend the long term solution, that's why I created this PR.

Have a nice day! 👍

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.12%. Comparing base (fe86049) to head (3b959c7).
Report is 147 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2704      +/-   ##
==========================================
- Coverage   71.43%   71.12%   -0.32%     
==========================================
  Files         277      335      +58     
  Lines       35875    33740    -2135     
==========================================
- Hits        25628    23998    -1630     
+ Misses       8028     7411     -617     
- Partials     2219     2331     +112     

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