NC | Test Files | Remove nsfs From File Name and Update Docs

[shirady]

Explain the changes

1. Remove nsfs from test file names:

• test_nc_bucket_cli.test.js
• test_nc_account_cli.test.js (and also rename tmp_fs_path according to the file's name)
• test_nc_anonymous_cli.test.js
• test_nc_connection_cli.test.js (and also rename tmp_fs_path according to the file's name and add this file in the docs)
  Note: for jest test names, we just update the file name without any additional rename.

2. Update the documentation file CI&Tests.md accordingly.

Issues:

1. It is a partial fix of NC | Unit tests suggestions and refactoring #8056: "12. Rename the file test_nc_nsfs_bucket_cli.test.js to test_nc_bucket_cli.test.js (notice that we also have the file test_nc_nsfs_account_cli.test.js and we also need to update the CI&Tests.md)" that was raised in PR NC | NSFS | CLI | Separate Bucket and Account List Functions #8747 as a GAP.
2. Comes after PR NC | CLI | Fix for unsettable flags issues #8774 (some of the content is already there).

Testing Instructions:

1. none, will be tested in the CI.

• Doc added/updated
• Tests added