Fix SHA range for incremental CI builds (#687)

* Use `github.event.before` and `github.event.after` for FromSha and ToSha when computing changed components

* Update push trigger to include 'ci/dev/**' branches for testing CI workflows

* Minor formatting fix

* Fix minor syntax error

* Minor formatting fix

* Remove 'ci/dev/**' from branch push trigger

* Revert "Minor formatting fix"

This reverts commit df913fa.

* Revert "Minor formatting fix"

This reverts commit 83b036a.

* Remove positional parameters for `Get-Changed-Components.ps1` to enable fallback values when empty strings are provided by workflow run.

Author: Arlodotexe

.github/workflows/build.yml

@@ -132,7 +132,7 @@ jobs:
             # Get changed components
       - name: Get changed components
         run: |
-          $changedComponents = $(./tooling/Get-Changed-Components.ps1)
+          $changedComponents = $(./tooling/Get-Changed-Components.ps1 ${{ github.event.before }} ${{ github.event.after }})
           $buildableChangedComponents = $(./tooling/MultiTarget/Filter-Supported-Components.ps1 -Components $changedComponents -MultiTargets ${{ matrix.multitarget }} -WinUIMajorVersion ${{ matrix.winui }})
           echo "CHANGED_COMPONENTS_LIST=$(($buildableChangedComponents | ForEach-Object { "$_" }) -join ',')" >> $env:GITHUB_ENV
           echo "HAS_BUILDABLE_COMPONENTS=$($buildableChangedComponents.Count -gt 0)" >> $env:GITHUB_ENV
@@ -268,7 +268,7 @@ jobs:
             # Get changed components
       - name: Get changed components
         run: |
-          $changedComponents = $(./tooling/Get-Changed-Components.ps1)
+          $changedComponents = $(./tooling/Get-Changed-Components.ps1 ${{ github.event.before }} ${{ github.event.after }})
           $buildableChangedComponents = $(./tooling/MultiTarget/Filter-Supported-Components.ps1 -Components $changedComponents -MultiTargets "all" -WinUIMajorVersion ${{ matrix.winui }})
           echo "CHANGED_COMPONENTS_LIST=$(($buildableChangedComponents | ForEach-Object { "$_" }) -join ',')" >> $env:GITHUB_ENV
           echo "HAS_BUILDABLE_COMPONENTS=$($buildableChangedComponents.Count -gt 0)" >> $env:GITHUB_ENV