Pipelines: Adds main alongside master in CI trigger filters

Adds 'main' to the trigger/schedule branch filters of every actively-
triggered Azure Pipelines YAML, alongside the existing 'master' entry.
Pipeline branch filters do not follow GitHub's branch-rename redirects,
so this transitional change ensures CI keeps firing on both names
across the cutover from master to main.

Files:
- azure-pipelines.yml (PR trigger)
- azure-pipelines-functional.yml (PR trigger)
- azure-pipelines-cron.yml (schedule)
- azure-pipelines-nightly.yml (schedule)
- azure-pipelines-rolling.yml (two schedules)

Pipelines using 'trigger: none' (official, encryption-official,
encryption-custom-official, faultinjection, msdata-direct, msdata-aot,
ctl-publishing) configure their branches in the Azure DevOps UI and are
updated separately as part of the cutover.

A follow-up PR drops 'master' from these filters once 'main' is verified.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: NaluTripician

azure-pipelines-cron.yml

@@ -8,6 +8,7 @@ schedules:
   displayName: Cosmos Cron
   branches:
     include: 
+    - main
     - master
   always: true # Run always irrespective of changes
 

azure-pipelines-functional.yml

@@ -4,6 +4,7 @@ trigger: none
 pr:
   branches:
     include:
+    - main
     - master
     - releases/*
   paths:

azure-pipelines-nightly.yml

@@ -8,6 +8,7 @@ schedules:
   displayName: Cosmos Nightly 
   branches:
     include: 
+    - main
     - master
   always: true # whether to always run the pipeline or only if there have been source code changes since the last run. The default is false
 

azure-pipelines-rolling.yml

@@ -8,12 +8,14 @@ schedules:
   displayName: Cosmos Weekly Rolling
   branches:
     include: 
+    - main
     - master
   always: true # whether to always run the pipeline or only if there have been source code changes since the last run. The default is false
 - cron: "0 0/2 * * 0,6" # cron syntax https://learn.microsoft.com/en-us/azure/devops/pipelines/process/scheduled-triggers?view=azure-devops&tabs=yaml#cron-syntax
   displayName: Cosmos Weekly Rolling
   branches:
     include: 
+    - main
     - master
   always: true # whether to always run the pipeline or only if there have been source code changes since the last run. The default is false
 

azure-pipelines.yml

@@ -4,6 +4,7 @@ trigger: none
 pr:
   branches:
     include:
+    - main
     - master
     - releases/*
   paths: