Adjust schedule for long-running Java ValidatesRunner Dataflow Streaming variants (#38001)

Author: Abacn

.github/workflows/beam_PostCommit_Java_ValidatesRunner_Dataflow_Streaming.yml

@@ -19,7 +19,7 @@ name: PostCommit Java ValidatesRunner Dataflow Streaming
 
 on:
   schedule:
-    - cron: '30 4/8 * * *'
+    - cron: '30 4 * * *'
   pull_request_target:
     paths: ['release/trigger_all_tests.json', '.github/trigger_files/beam_PostCommit_Java_ValidatesRunner_Dataflow_Streaming.json']
   workflow_dispatch:

.github/workflows/beam_PostCommit_Java_ValidatesRunner_Dataflow_Streaming_Engine.yml

@@ -18,7 +18,7 @@ name: PostCommit Java ValidatesRunner Dataflow Streaming Engine
 
 on:
   schedule:
-    - cron: '30 4/8 * * *'
+    - cron: '30 12 * * *'
   pull_request_target:
     paths: ['release/trigger_all_tests.json', '.github/trigger_files/beam_PostCommit_Java_ValidatesRunner_Dataflow_Streaming_Engine.json']
   workflow_dispatch:

.github/workflows/beam_PostCommit_Java_ValidatesRunner_Dataflow_Streaming_TagEncodingV2.yml

@@ -19,7 +19,7 @@ name: PostCommit Java ValidatesRunner Dataflow Streaming TagEncodingV2
 
 on:
   schedule:
-    - cron: '30 4/8 * * *'
+    - cron: '30 20 * * *'
   pull_request_target:
     paths: ['release/trigger_all_tests.json', '.github/trigger_files/beam_PostCommit_Java_ValidatesRunner_Dataflow_Streaming_TagEncodingV2.json']
   workflow_dispatch:

.github/workflows/beam_PostCommit_Java_ValidatesRunner_Dataflow_V2_Streaming.yml

@@ -19,7 +19,7 @@ name: PostCommit Java ValidatesRunner Dataflow V2 Streaming
 
 on:
   schedule:
-    - cron: '30 6/8 * * *'
+    - cron: '30 6/12 * * *'
   pull_request_target:
     paths: ['release/trigger_all_tests.json', '.github/trigger_files/beam_PostCommit_Java_ValidatesRunner_Dataflow_V2_Streaming.json']
   workflow_dispatch: