TECH_DEBT: Bound the HTTP calls in get_deployed_commit.py with a timeout

Neither urlopen call passed a timeout, and the script never sets a global socket
default, so both used urlopen's default of blocking indefinitely. An unresponsive
/api/info endpoint or GitHub API would hang the Summarize job until the Azure DevOps
job timeout killed it, rather than failing the step with a usable error.

- Add an HTTP_TIMEOUT_SECONDS constant of 30 seconds
- Pass it to the /api/info request and the GitHub commits request, so both share the
  same budget

A timeout on the /api/info call raises into the existing handler and exits through
fail(); a timeout while resolving the full hash prints the existing warnings and
leaves FromCommit as the short hash. Verified against qa2 that the normal path is
unaffected: 78b98b4 still resolves to 78b98b4.

Author: MikeAtPinnacle

Scripts/get_deployed_commit.py

@@ -24,6 +24,10 @@
 
 REPO_COMMITS_API_ROOT = 'https://api.github.com/repos/lantanagroup/link-cloud/commits/'
 
+# urlopen blocks indefinitely by default, which would hang the pipeline job rather than
+# fail it. Bound every HTTP call to the same budget.
+HTTP_TIMEOUT_SECONDS = 30
+
 def fail(msg: str):
     print(f"ERROR: {msg}", file=sys.stderr)
     sys.exit(1)
@@ -78,7 +82,7 @@ def main():
             info_url,
             headers={'Accept': 'application/json'}
         )
-        with urllib.request.urlopen(request) as response:
+        with urllib.request.urlopen(request, timeout=HTTP_TIMEOUT_SECONDS) as response:
             body = response.read().decode("utf-8")
     except Exception as e:
         fail(f"Failed to GET {info_url}: {e}")
@@ -109,7 +113,7 @@ def main():
                 f"{REPO_COMMITS_API_ROOT}{commit}",
                 headers={'Accept': 'application/vnd.github.sha'}
             )
-            with urllib.request.urlopen(request) as response:
+            with urllib.request.urlopen(request, timeout=HTTP_TIMEOUT_SECONDS) as response:
                 full_commit = response.read().decode("utf-8").strip()
 
             if len(full_commit) == 40: