UTY-2607: update linux queue (#1419)

* update linux queues

* Revert Resources.meta

Author: BryanJY-Wong

.buildkite/generate-docs.steps.yaml

@@ -2,7 +2,7 @@
 linux: &linux
   agents:
     - "capable_of_building=gdk-for-unity"
-    - "queue=${LINUX_QUEUE:-v3-1568738590-4881a8663c5d900a-------z}"
+    - "queue=${LINUX_QUEUE:-v4-20-07-06-120608-bk13080-eb89af6c}"
     - "platform=linux"
     - "permission_set=builder"
     - "scaler_version=2"

.buildkite/premerge.steps.yaml

@@ -39,7 +39,7 @@ linux: &linux
     - "environment=production"
     - "permission_set=builder"
     - "platform=linux"  # if you need a different platform, configure this: macos|linux|windows.
-    - "queue=v3-1562766449-11b126f880607f28-------z"
+    - "queue=v4-20-07-06-120608-bk13080-eb89af6c"
     - "scaler_version=2"
   timeout_in_minutes: 60 # TODO(ENG-548): reduce timeout once agent-cold-start is optimised.
   retry: