fetch-job: handle all exceptions and continue the fetch-loop

Before this change only the TimeoutExpired exception was handled, any
other exception would exit the for loop. However, even the handling of
the TimeoutExpired exception would call sys.exit(1) after printing out
the error.

Change-Id: Ie55d83c302b9838ec147ace838e202d6c1a9e14f

container-images/fetch-job/tools/fetch-job.py

diff --git a/container-images/fetch-job/tools/fetch-job.py b/container-images/fetch-job/tools/fetch-job.py
index 55267d5..28d3ff6 100755
--- a/container-images/fetch-job/tools/fetch-job.py
+++ b/container-images/fetch-job/tools/fetch-job.py
@@ -77,13 +77,11 @@
         print(f"Fetching {remote_repo} from {remote_name} into {git_repo}")
         try:
             git_repo.fetch(remote_name, timeout=timeout_seconds)
-        except subprocess.TimeoutExpired:
+        except Exception as e:
             print(
-                f"ERROR: fetch of {remote_repo} from {remote_name} timed out "
-                f"after {timeout_seconds}s",
+                f"ERROR: fetch of {remote_repo} from {remote_name} failed: {e}",
                 file=sys.stderr,
             )
-            sys.exit(1)
 
 
 def main():