fix(deps): install GStreamer and PyGObject via apt instead of pip

Author: kluge7

scripts/ci_install_dependencies.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # Script to install dependencies for H264Decoder
-# This script installs GStreamer and PyGObject dependencies required for running the tests
+# Installs GStreamer and PyGObject dependencies required for running the tests
 
 set -e  # Exit on error
 
@@ -10,24 +10,17 @@ echo "Installing GStreamer and related plugins..."
 sudo apt update
 sudo apt install -y gstreamer1.0-tools gstreamer1.0-plugins-base \
     gstreamer1.0-plugins-good gstreamer1.0-plugins-bad \
-    gstreamer1.0-plugins-ugly gstreamer1.0-libav python3-gi \
-    python3-gst-1.0
+    gstreamer1.0-plugins-ugly gstreamer1.0-libav \
+    python3-gi python3-gst-1.0
 
 echo "GStreamer installation completed."
 
 echo "If you experience display-related issues with the GUI, try running:"
 echo "export QT_QPA_PLATFORM=xcb"
 
 ### PyGObject Installation ###
-echo "Installing PyGObject dependencies..."
+echo "Installing PyGObject dependencies via apt..."
 sudo apt install -y libglib2.0-dev libcairo2-dev libgirepository1.0-dev \
-    gir1.2-gtk-3.0 python3-dev ninja-build
+    gir1.2-gtk-3.0 python3-gi-cairo
 
-echo "Ensuring latest Meson version is installed..."
-pip install --upgrade meson
-
-echo "Installing PyGObject via pip..."
-pip install pycairo --no-cache-dir
-pip install pygobject --no-cache-dir
-
-echo "Installation of all dependencies completed successfully."
+echo "All dependencies installed successfully via apt."