chore(ci): update dotnet version to v8

Author: muhlba91

.github/workflows/release.yml

@@ -101,7 +101,7 @@ jobs:
       matrix:
         go-version: [1.23.x]
         node-version: [20.x]
-        dotnet-version: [6.0.x]
+        dotnet-version: [8.0.x]
         python-version: [3.11]
         java-version: [11]
         language:

.github/workflows/verify.yml

@@ -77,7 +77,7 @@ jobs:
       matrix:
         go-version: [1.23.x]
         node-version: [20.x]
-        dotnet-version: [6.0.x]
+        dotnet-version: [8.0.x]
         python-version: [3.11]
         java-version: [11]
         language: