CI: Ignore errors present in build logs

Report errors found in the build logs, but do not fail the job if some are
present. Based on observations, certain errors (for example):

update-alternatives: error: alternative path /usr/share/man/man7/bash-builtins.7.gz doesn't exist

do not actually cause the build to fail. Instead of relying on log parsing, we should maybe
check the return code of the build process to determine whether the build truly failed?

ci-scripts/cls_containerize.py

@@ -93,7 +93,7 @@ def AnalyzeBuildLogs(image, lf):
 			committed = committed or lineHasCommit
 			if re.search(r'error:|Errors|ERROR', line):
 				errors.append(f"=> {line.strip()}")
-	status = (committed or tagged) and len(errors) == 0
+	status = (committed or tagged)
 	logging.info(f"Analyzing {image}, file {lf}: {status=}, {len(errors)} errors")
 	for e in errors:
 		logging.info(e)