Update google.config

Found in docs here:
https://www.nextflow.io/docs/latest/process.html#dynamic-retry-with-backoff

conf/google.config

@@ -30,16 +30,18 @@ google {
 process {
 	// Common process configurations on Lifebit CloudOS
 	echo = params.echo
-
 	container = params.containerName
 	cpus = params.resquiggle_cpus
 	memory =  params.resquiggle_memory
 	disk = 500.GB
-	maxRetries = 5
-	errorStrategy = { task.attempt == process.maxRetries ? 'ignore' : task.exitStatus in [10, 14] ? 'retry' : 'ignore' }
+	maxRetries = 30
+
+	// Adds errorStrategy for when required execution resources may be temporary unavailable e.g. network congestion.
+	// Nextflow docs: 
+	errorStrategy = { sleep(Math.pow(2, task.attempt) * 200 as long); return 'retry' }
 
 	withName: DeepSignal {
-        errorStrategy = { task.attempt == process.maxRetries ? 'ignore' : task.exitStatus in [8, 10, 14] ? 'retry' : 'ignore' }
+        errorStrategy = { task.attempt == process.maxRetries ? 'ignore' : task.exitStatus in [8, 10, 14] ? sleep(Math.pow(2, task.attempt) * 200 as long); return 'retry' : 'ignore' }
     }
 
 	withName: Tombo {