ci: fix release workflow (#133)

* Bump DOTNET_VERSION in release.yml

* temp: add push to workflow trigger

* Bump checkout version

* Revert temp workflow trigger

* uncomment publish step

Author: matthewelwell

.github/workflows/release.yml

@@ -9,7 +9,7 @@ env:
   DOTNET_SKIP_FIRST_TIME_EXPERIENCE: 1
   DOTNET_NOLOGO: true
   NuGetDirectory: ${{ github.workspace }}/nuget
-  DOTNET_VERSION: 7.0.x
+  DOTNET_VERSION: 8.0.x
 
 defaults:
   run:
@@ -19,7 +19,7 @@ jobs:
   create_nuget:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 0