Simplify dotnet pack command in CI workflow

Author: guitarrapc

.github/workflows/build-main.yaml

@@ -20,7 +20,7 @@ jobs:
       - uses: Cysharp/Actions/.github/actions/setup-dotnet@main
       - run: dotnet tool restore
       - run: dotnet build -c Release -p:DefineConstants=RUNNING_IN_CI
-      - run: dotnet pack ./src/Multicaster/Multicaster.csproj -c Release --no-build -p:IncludeSymbols=true -p:SymbolPackageFormat=snupkg
+      - run: dotnet pack -c Release --no-build -p:IncludeSymbols=true -p:SymbolPackageFormat=snupkg
       - run: dotnet retest -- -c Release --no-build
       - uses: Cysharp/Actions/.github/actions/upload-artifact@main
         with: