Update matplotlib to 3.9.x

The mpl.cm toplevel registration has been removed.

https://matplotlib.org/stable/api/prev_api_changes/api_changes_3.9.0.html#top-level-cmap-registration-and-access-functions-in-mpl-cm

docker/main/requirements-wheels.txt

@@ -4,7 +4,7 @@ Flask_Limiter == 3.7.*
 imutils == 0.5.*
 joserfc == 0.11.*
 markupsafe == 2.1.*
-matplotlib == 3.8.*
+matplotlib == 3.9.*
 mypy == 1.6.1
 numpy == 1.26.*
 onvif_zeep == 0.2.12

frigate/config.py

@@ -1033,7 +1033,7 @@ class CameraConfig(FrigateBaseModel):
     def __init__(self, **config):
         # Set zone colors
         if "zones" in config:
-            colors = plt.cm.get_cmap("tab10", len(config["zones"]))
+            colors = plt.colormaps["tab10"].resampled(len(config["zones"]))
             config["zones"] = {
                 name: {**z, "color": tuple(round(255 * c) for c in colors(idx)[:3])}
                 for idx, (name, z) in enumerate(config["zones"].items())

frigate/detectors/detector_config.py

@@ -128,7 +128,7 @@ class ModelConfig(BaseModel):
 
     def create_colormap(self, enabled_labels: set[str]) -> None:
         """Get a list of colors for enabled labels."""
-        cmap = plt.cm.get_cmap("tab10", len(enabled_labels))
+        cmap = plt.colormaps["tab10"].resampled(len(enabled_labels))
 
         for key, val in enumerate(enabled_labels):
             self._colormap[val] = tuple(int(round(255 * c)) for c in cmap(key)[:3])