Remove NET 7 from pipelines (#3631)

Fixing Version number updates

Author: Keboo

.github/workflows/build_artifacts.yml

@@ -33,7 +33,6 @@ jobs:
               with:
                   dotnet-version: |
                       6.x
-                      7.x
                       8.x
 
             - name: Restore dependencies

.github/workflows/icon_update.yml

@@ -21,12 +21,7 @@ jobs:
 
         steps:
             - uses: actions/checkout@v4
-
-            - name: Setup .NET
-              uses: actions/setup-dotnet@v4
-              with:
-                  dotnet-version: 7.x
-
+            
             - name: Run Icon Generation
               run: dotnet run -c Release -- icons
               working-directory: ./src/MaterialDesignToolkit.ResourceGeneration

.github/workflows/pr_verification.yml

@@ -29,4 +29,4 @@ jobs:
       contents: write
 
     steps:
-      - uses: fastify/[email protected]  
+      - uses: fastify/[email protected]

.github/workflows/release.yml

@@ -311,10 +311,12 @@ jobs:
                   Update-Version -Prefix "mdix-colors-version"
                   Update-Version -Prefix "mdix-mahapps-version"
 
-            - name: Push Changes
+            - name: Open Pull Request
               run: |
                   git config --local user.email "github-actions[bot]@users.noreply.github.com"
                   git config --local user.name "github-actions[bot]"
-                  git commit -m "[automated] Increment version numbers after release of ${{ inputs.milestone }}" --all
-                  git remote set-url origin https://${{ secrets.SA_PAT }}@github.com/${{ github.repository }}
-                  git push
+                  git checkout -b "automated/version_update"
+                  git commit -m "[bot] Release version update" --all
+                  git push -f --set-upstream origin automated/version_update
+                  gh pr create --fill
+                  gh pr merge automated/version_update --delete-branch --auto --squash