Upgrade the github workflows sdk to 8.0.x (#992)

Author: aldelaro5

.github/workflows/build.yml

@@ -34,9 +34,9 @@ jobs:
                     branch: master
                     workflow_id: build.yml
                     github_token: ${{ secrets.GITHUB_TOKEN }}
-            -   uses: actions/setup-dotnet@v1
+            -   uses: actions/setup-dotnet@v4
                 with:
-                    dotnet-version: "6.0.x"
+                    dotnet-version: "8.0.x"
             -   name: Build
                 run: |
                     ./build.sh --target Publish --build-type ${{ steps.info.outputs.build_type }} --build-id ${{ steps.info.outputs.build_id }} --last-build-commit \"${{ steps.last_successful_commit.outputs.commit_hash }}\" --nuget-api-key \"${{ secrets.BEPIN_DEV_NUGET_KEY }}\"

.github/workflows/build_pr.yml

@@ -10,9 +10,9 @@ jobs:
         runs-on: ubuntu-latest
         steps:
             -   uses: actions/checkout@v2.3.5
-            -   uses: actions/setup-dotnet@v1
+            -   uses: actions/setup-dotnet@v4
                 with:
-                    dotnet-version: "6.0.x"
+                    dotnet-version: "8.0.x"
             -   name: Build
                 run: |
                     ./build.sh --target Publish