further increase timeout (#36329)

Author: stankiewicz

.github/workflows/beam_Publish_Beam_SDK_Snapshots.yml

@@ -53,7 +53,7 @@ jobs:
       github.event_name == 'workflow_dispatch' ||
       (github.event_name == 'schedule' && github.repository == 'apache/beam')
     runs-on: ubuntu-22.04
-    timeout-minutes: 200
+    timeout-minutes: 300
     name: ${{ matrix.job_name }} (${{ matrix.container_task }})
     strategy:
       fail-fast: false