Docs: fix YOLOv9 onnx export (#22107)

* Docs: fix missing dependency in YOLOv9 build script

I had this command fail because it didn't have cmake available.

This change fixes that problem.

* Docs: avoid failure in YOLOv9 build script

Pinning to 0.4.36 avoids this error:

```
10.58  Downloading onnx
12.87    Building onnxsim==0.5.0
1029.4   × Failed to download and build `onnxsim==0.5.0`
1029.4   ╰─▶ Package metadata version `0.4.36` does not match given version `0.5.0`
1029.4   help: `onnxsim` (v0.5.0) was included because `onnx-simplifier` (v0.5.0)
1029.4         depends on `onnxsim`
```

* Update Dockerfile instructions for object detectors

---------

Co-authored-by: Nicolas Mowen <nickmowen213@gmail.com>

docs/docs/configuration/object_detectors.md

@@ -1057,12 +1057,12 @@ YOLOv9 model can be exported as ONNX using the command below. You can copy and p
 ```sh
 docker build . --build-arg MODEL_SIZE=t --build-arg IMG_SIZE=320 --output . -f- <<'EOF'
 FROM python:3.11 AS build
-RUN apt-get update && apt-get install --no-install-recommends -y libgl1 && rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt-get install --no-install-recommends -y cmake libgl1 && rm -rf /var/lib/apt/lists/*
-COPY --from=ghcr.io/astral-sh/uv:0.8.0 /uv /bin/
+COPY --from=ghcr.io/astral-sh/uv:0.10.4 /uv /bin/
 WORKDIR /yolov9
 ADD https://github.com/WongKinYiu/yolov9.git .
 RUN uv pip install --system -r requirements.txt
-RUN uv pip install --system onnx==1.18.0 onnxruntime onnx-simplifier>=0.4.1 onnxscript
+RUN uv pip install --system onnx==1.18.0 onnxruntime onnx-simplifier==0.4.* onnxscript
 ARG MODEL_SIZE
 ARG IMG_SIZE
 ADD https://github.com/WongKinYiu/yolov9/releases/download/v0.1/yolov9-${MODEL_SIZE}-converted.pt yolov9-${MODEL_SIZE}.pt

docs/docs/frigate/video_pipeline.md

@@ -37,18 +37,18 @@ The following diagram adds a lot more detail than the simple view explained befo
 %%{init: {"themeVariables": {"edgeLabelBackground": "transparent"}}}%%
 
 flowchart TD
-    RecStore[(Recording\nstore)]
+    RecStore[(Recording<br>store)]
-    SnapStore[(Snapshot\nstore)]
+    SnapStore[(Snapshot<br>store)]
 
     subgraph Acquisition
         Cam["Camera"] -->|FFmpeg supported| Stream
-        Cam -->|"Other streaming\nprotocols"| go2rtc
+        Cam -->|"Other streaming<br>protocols"| go2rtc
         go2rtc("go2rtc") --> Stream
-        Stream[Capture main and\nsub streams] --> |detect stream|Decode(Decode and\ndownscale)
+        Stream[Capture main and<br>sub streams] --> |detect stream|Decode(Decode and<br>downscale)
     end
     subgraph Motion
-        Decode --> MotionM(Apply\nmotion masks)
+        Decode --> MotionM(Apply<br>motion masks)
-        MotionM --> MotionD(Motion\ndetection)
+        MotionM --> MotionD(Motion<br>detection)
     end
     subgraph Detection
         MotionD --> |motion regions| ObjectD(Object detection)
@@ -60,8 +60,8 @@ flowchart TD
     MotionD --> |motion event|Birdseye
     ObjectZ --> |object event|Birdseye
 
-    MotionD --> |"video segments\n(retain motion)"|RecStore
+    MotionD --> |"video segments<br>(retain motion)"|RecStore
     ObjectZ --> |detection clip|RecStore
-    Stream -->|"video segments\n(retain all)"| RecStore
+    Stream -->|"video segments<br>(retain all)"| RecStore
     ObjectZ --> |detection snapshot|SnapStore
 ```