fix(monitoring): add kiosk for automatic height calculation to work

passing `height=-1` for automatic calculation of height, was broken
for a few releases, in this release it should work when `kisok` parameter
is also being passed

sdcm/logcollector.py

@@ -499,8 +499,11 @@ def get_grafana_screenshot(self, node, local_dst):
                                                                         datetime.datetime.now().strftime("%Y%m%d_%H%M%S"),
                                                                         node.name))
                     LOGGER.debug("Get screenshot for url %s, save to %s", grafana_url, screenshot_path)
+                    # deliberately specifying params as string to be able to use kiosk mode
+                    # since requests can put a param without value, if using dict
+                    # https://github.com/psf/requests/issues/2651
                     with requests.get(grafana_url, stream=True,
-                                      params=dict(width=dashboard.resolution[0], height=dashboard.resolution[1])) as response:
+                                      params=f"width={dashboard.resolution[0]}&height=-1&kiosk") as response:
                         response.raise_for_status()
                         with open(screenshot_path, 'wb') as output_file:
                             for chunk in response.iter_content(chunk_size=8192):