scripts: west_commands: Log a hint for rate-limit failure during install

`west sdk install` may fail with a GitHub API rate-limit (HTTP 403)
error. This typically occurs when the command is run multiple times
after previous failures, which is common for new users setting up
the project. Currently, the thrown exception only links to a generic
GitHub rate-limit documentation page, which may be confusing to users.

Users can bypass the rate limit by authenticating with GitHub using a
Personal Access Token. The install script supports this via the
`--personal-access-token` argument. Therefore, detect rate-limit related
failures and print a helpful message suggesting the use of this
argument.

Signed-off-by: Beleswar Prasad Padhi <[email protected]>

Author: 3V3RYONE

scripts/west_commands/sdk.py

@@ -247,6 +247,9 @@ def fetch_releases(self, url, req_headers):
             params = {"page": page, "per_page": 100}
             resp = requests.get(url, headers=req_headers, params=params)
             if resp.status_code != 200:
+                rate_limit_log = "API rate limit exceeded"
+                if rate_limit_log in resp.text:
+                    self.inf(f"fetch_releases {rate_limit_log}. Try executing install script with --personal-access-token argument")
                 raise Exception(f"Failed to fetch: {resp.status_code}, {resp.text}")
 
             data = resp.json()