Use --force for dotnet new to fix test

Author: mbg

csharp/ql/integration-tests/all-platforms/dotnet_no_args_inject/test.py

@@ -5,4 +5,4 @@
 # and they should therefore run successfully
 run_codeql_database_init(lang="csharp")
 run_codeql_database_trace_command(['dotnet', 'tool', 'search', 'publish'])
-run_codeql_database_trace_command(['dotnet', 'new', 'console', '--name', 'build', '--output', '.'])
+run_codeql_database_trace_command(['dotnet', 'new', 'console', '--force', '--name', 'build', '--output', '.'])