[ARMPL] Download GCC dependencies from our public bucket rather than GCC website

[gmarciani]

Description of changes

Fix a bug in the installation of ARM Performance Library that was causing the build image fail in isolated environments due to cookbook retrieving GCC dependencies from GCC website rather than ParallelCluster bucket.

Tests

Build images succeeded (tested in AL2 arm)

References

• Link to impacted open issues.
• Link to related PRs in other packages (i.e. cookbook, node).
• Link to documentation useful to understand the changes.

Checklist

• Make sure you are pointing to the right branch.
• If you're creating a patch for a branch other than develop add the branch name as prefix in the PR title (e.g. [release-3.6]).
• Check all commits' messages are clear, describing what and why vs how.
• Make sure to have added unit tests or integration tests to cover the new/modified code.
• Check if documentation is impacted by this change.

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.50%. Comparing base (98c689e) to head (90b03d5).
Report is 16 commits behind head on release-3.13.

Additional details and impacted files

@@              Coverage Diff              @@
##           release-3.13    #2942   +/-   ##
=============================================
  Coverage         75.50%   75.50%           
=============================================
  Files                23       23           
  Lines              2356     2356           
=============================================
  Hits               1779     1779           
  Misses              577      577           

Flag	Coverage Δ
unittests	75.50% <ø> (ø)

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