Retry file downloads 3 times, exit 1 on failure

[heavyscientist]

Pull Request Description

Retry file downloads 3 times, exit 1 on failure

Changes Made

Describe the changes you've made in this pull request. What does this PR do?

• if something fails to download, it will try up to 3 times backing off for 5 seconds.
• failing to download exits execution with status code 1

Motivation and Context

Why is this change required? What problem does it solve?

• makes the cli more robust for automation

Type of Change

Please check the options that are relevant:

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• This change requires a documentation update

Testing Performed

Describe the tests you ran to verify your changes:

• local testing

Screenshots (if appropriate)

Add screenshots to help explain your changes.

Checklist

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[github-actions]

Code Coverage Summary

Filename                    Stmts    Miss  Cover    Missing
------------------------  -------  ------  -------  ------------------------------------------------------------------------------
rustmaps.go                     1       0  100.00%
pkg/api/generate.go            98      37  62.24%   65, 72, 92-93, 115, 125-138, 156, 163, 173-174, 183-184, 191-205, 210, 221-226
pkg/api/limits.go              27      10  62.96%   50-51, 60-61, 70-71, 78-79, 84-85
pkg/api/main.go                11       0  100.00%
pkg/api/status.go              41       6  85.37%   90, 99-100, 109-110, 119
pkg/rustmaps/auth.go           15       4  73.33%   26-27, 34-35
pkg/rustmaps/getters.go         5       0  100.00%
pkg/rustmaps/import.go         98      13  86.73%   34, 45, 50, 106-107, 159-160, 166-167, 179-180, 187-188
pkg/rustmaps/setters.go         3       0  100.00%
pkg/rustmaps/main.go           43       4  90.70%   52, 70, 111-112
pkg/rustmaps/config.go         13       3  76.92%   25-27, 34
pkg/rustmaps/download.go       95      22  76.84%   52-54, 79-81, 87-91, 133-134, 138, 156-157, 161-162, 170-171, 174-175, 178-179
pkg/rustmaps/generate.go       29       5  82.76%   25, 29, 35-36, 51
pkg/rustmaps/helpers.go        21       0  100.00%
pkg/types/main.go              38       2  94.74%   106, 114
TOTAL                         538     106  80.30%

Results for commit: 0e023fb

Minimum allowed coverage is 80%

♻️ This comment has been updated with latest results

[nvgscientist]

LGTM