GithubCI: remove --framework agrument

When doing lint in testReleaseBinariesInDotNet8Container job.

* Job was already installing specific image that only has .NET8
(not newer, not older).
* Commit a3f6216 (the one that introduced this job) was wrong
anyway because --framework flag is for dotnet run, doesn't work
for dotnet tools.

Author: webwarrior-ws

.github/workflows/build+test+deploy.yml

@@ -165,7 +165,7 @@ jobs:
       - name: Add .NET tools to PATH
         run: echo "$HOME/.dotnet/tools" >> $GITHUB_PATH
       - name: Lint FSharpLint.Console/Program.fs (net8.0 only)
-        run: dotnet fsharplint lint --framework net8.0 ./src/FSharpLint.Console/Program.fs
+        run: dotnet fsharplint lint ./src/FSharpLint.Console/Program.fs
 
   testReleaseBinariesWithDotNet10:
     needs: packReleaseBinaries