zombienet timings adjusted (paritytech#12890)

* zombinet tests: add some timeout to allow net spin-up

Sometimes tests are failing at first try, as the pods were not up yet.
Adding timeout should allow the network to spin up properly.

* initial timeout increased to 30s

Author: michalkucharczyk

zombienet/0000-block-building/block-building.zndsl

@@ -2,8 +2,8 @@ Description: Block building
 Network: ./block-building.toml
 Creds: config
 
-alice: is up
-bob: is up
+alice: is up within 30 seconds
+bob: is up within 30 seconds
 
 alice: reports node_roles is 4
 bob: reports node_roles is 4

zombienet/0001-basic-warp-sync/test-warp-sync.zndsl

@@ -2,10 +2,10 @@ Description: Warp sync
 Network: ./test-warp-sync.toml
 Creds: config
 
-alice: is up
-bob: is up
-charlie: is up
-dave: is up
+alice: is up within 30 seconds
+bob: is up within 30 seconds
+charlie: is up within 30 seconds
+dave: is up within 30 seconds
 
 alice: reports node_roles is 1
 bob: reports node_roles is 1