Update build workflows to allow manual runs (#7523)

# Description

This updates the build workflow to allow manual runs for testing feature
branch changes

## Type of change

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Fixes: #issue_number

Signed-off-by: sk593 <[email protected]>

.github/workflows/build.yaml

@@ -16,6 +16,8 @@
 
 name: Build and Test
 on:
+  # Enable manual trigger
+  workflow_dispatch:
   push:
     branches:
       - main

.github/workflows/functional-test.yaml

@@ -22,6 +22,8 @@ permissions:
   packages: write # Required for uploading the package
 
 on:
+  # Enable manual trigger
+  workflow_dispatch:
   schedule:
     # Run every 4 hours on weekdays.
     - cron: "30 0,4,8,12,16,20 * * 1-5"

.github/workflows/validate-bicep.yaml

@@ -16,6 +16,8 @@
 
 name: Validate Bicep Code
 on:
+  # Enable manual trigger
+  workflow_dispatch:
   pull_request:
     branches:
       - main