fix build log collection

Author: mfosterw

compose/production/telemetry/otelcol-config.yaml

@@ -7,7 +7,7 @@ receivers:
   filelog/host:
     include: [/var/log/build.log]
     poll_interval: 200ms
-    start_at: beginning
+    start_at: end
     include_file_name: false
     include_file_path: false
     operators: