GitHub: Add action to bump version number

.github/workflows/package-version-bumpup.yml

@@ -0,0 +1,54 @@
+name: Package Version Bump
+run-name: Bump up Files to ${{ inputs.files_new_version }}
+on:
+    workflow_dispatch:
+        inputs:
+            files_new_version:
+                description: 'New version number:'
+                required: true
+            package_version_type:
+                description: 'Package version type:'
+                type: choice
+                default: Release
+                options:
+                    - Preview
+                    - Release
+                    - Test
+                    - Servicing
+                required: false
+
+jobs:
+    resources:
+        name: Bump up the package version
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v2
+
+            - name: Update Package.appxmanifest
+              run: |
+                  sed -i "s/<Identity Name=\"\(.*\)\" Publisher=\"\(.*\)\" Version=\"\(.*\)\" \/>/<Identity Name=\"\1\" Publisher=\"\2\" Version=\"${{ inputs.files_new_version }}\" \/>/g" "src/Files.App (Package)/Package.appxmanifest"
+
+            - id: package_type_string
+              uses: ASzc/change-string-case-action@v5
+              with:
+                string: ${{ inputs.package_version_type }}
+
+            - name: Create a new PR
+              uses: peter-evans/create-pull-request@v4
+              with:
+                token: ${{ secrets.ACCESS_TOKEN }}
+                commit-message: '${{ inputs.package_version_type }}: ${{ inputs.files_new_version }}'
+                committer: ${{ github.actor }} <${{ github.actor }}@users.noreply.github.com>
+                author: ${{ github.actor }} <${{ github.actor }}@users.noreply.github.com>
+                signoff: false
+                branch: '${{ steps.package_type_string.outputs.lowercase }}/${{ inputs.files_new_version }}'
+                delete-branch: true
+                title: '${{ inputs.package_version_type }}: ${{ inputs.files_new_version }}'
+                body: |
+                    ### Summary
+                    Bumps Files to **${{ inputs.files_new_version }}**.
+                    Created by GitHub Actions on behalf of @${{ github.actor }}.
+
+                    ### Package type
+                    **${{ inputs.package_version_type }}** package.
+                draft: false