symbolication: reduce error logs for short-lived executables

short lived executables might no longer exist by the time we want
to copy symbols, this hopefully reduces the amount of error logs
that the uploader outputs for those executables

symbolication/datadog_uploader.go

@@ -123,6 +123,14 @@ func (d *DatadogUploader) HandleExecutable(elfRef *pfelf.Reference, fileID libpf
 			return
 		}
 
+		_, err = os.Stat(inputFilePath)
+		if err != nil {
+			d.uploadCache.Remove(fileID)
+			log.Debugf("Skipping symbol extraction for short-lived executable %s: %v", fileName,
+				err)
+			return
+		}
+
 		err = d.handleSymbols(inputFilePath, e)
 		if err != nil {
 			d.uploadCache.Remove(fileID)