Fix string quoting in conan commands of ci tutorial

[amachado-pie]

Fixes #174

Running: conan remote remove *
Traceback (most recent call last):
  File "/home/amachado/stuff/examples2/ci/game/project_setup.py", line 94, in <module>
    project_setup()
  File "/home/amachado/stuff/examples2/ci/game/project_setup.py", line 64, in project_setup
    run("conan remote remove *")
  File "/home/amachado/stuff/examples2/ci/game/project_setup.py", line 33, in run
    raise Exception("Failed cmd: {}\n{}".format(cmd, output))
Exception: Failed cmd: conan remote remove *
usage: conan remote [-h] [-v [V]] [-cc CORE_CONF] {remove} ...
conan remote: error: unrecognized arguments: engine game graphics mapviewer mathlib project_setup.py run_example.py
ERROR: Exiting with code: 2

The error occurs because the * wildcard is being expanded by the shell to include all files and directories in the current directory, which is not what the conan remote disable command expects.
To pass the * as a literal argument to the conan command without being expanded by the shell, we should use quotes around the *.
This way, the * is passed as a literal argument to the conan command, and it will not be expanded by the shell.

[CLAassistant]

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[AbrilRBS]

Hi @amachado-pie thanks a lot for taking the time to fix this, we appreciate it :)