[release/7.0-rc1] Add runs for release/7.0* on community architectures (

#74239)

* Add scheduled runs for release/7.0* on community architectures

* Suggestion from Alex, to avoid upkeep churn

* Switch to runtime.yml model - ALL release branch commits get built

Co-authored-by: Jo Shields <joshield@microsoft.com>
Co-authored-by: Jo Shields <directhex@apebox.org>

eng/pipelines/runtime-community.yml

@@ -1,4 +1,23 @@
-trigger: none
+trigger:
+  batch: true
+  branches:
+    include:
+    - release/*.*
+    exclude:
+    - release/6.0*
+  paths:
+    include:
+    - '*'
+    - docs/manpages/*
+    exclude:
+    - '**.md'
+    - eng/Version.Details.xml
+    - .devcontainer/*
+    - .github/*
+    - docs/*
+    - LICENSE.TXT
+    - PATENTS.TXT
+    - THIRD-PARTY-NOTICES.TXT
 
 schedules:
   - cron: "0 7,19 * * *" # run at 7:00 and 19:00 (UTC) which is 23:00 and 11:00 (PST).