feat: update get-higress.sh

[CH3CHO]

Ⅰ. Describe what this PR did

Update get-higress.sh:

1. Support arm64 platforms
2. Update the description of file config URL
3. Exclude test folder when decompressing the install package

Ⅱ. Does this pull request fix one issue?

Ⅲ. Why don't you add test cases (unit test/integration test)?

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[codecov-commenter]

Codecov Report

Merging #500 (3554bbb) into main (2b9e3a1) will decrease coverage by 0.33%.
The diff coverage is n/a.

❗ Current head 3554bbb differs from pull request most recent head 222ded7. Consider uploading reports for the commit 222ded7 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #500      +/-   ##
==========================================
- Coverage   40.31%   39.99%   -0.33%     
==========================================
  Files          45       45              
  Lines        6186     6186              
==========================================
- Hits         2494     2474      -20     
- Misses       3519     3539      +20     
  Partials      173      173              

see 1 file with indirect coverage changes