fix: change start_at to beginning to read existing logs

- Change start_at from end to beginning
- This should allow OpenTelemetry Collector to read existing log content
- May cause duplicate logs but should make logs visible in Grafana

freeleaps/helm-pkg/authentication/templates/authentication/opentelemetry.yaml

@@ -46,7 +46,7 @@ spec:
       filelog:
         include:
           - {{ .Values.logIngest.logPathPattern }}
-        start_at: end
+        start_at: beginning
         include_file_path: false
         include_file_name: false
         operators: