Remove GTK2 Linux prerequisites (#6262)

Author: MikeMcC399

docs/app/get-started/install-cypress.mdx

@@ -130,19 +130,19 @@ Install required dependencies. See below under [Docker Prerequisites](#Docker-Pr
 For Ubuntu 22.04 and Debian:
 
 ```shell
-apt-get install libgtk2.0-0 libgtk-3-0 libgbm-dev libnotify-dev libnss3 libxss1 libasound2 libxtst6 xauth xvfb
+apt-get install libgtk-3-0 libgbm-dev libnotify-dev libnss3 libxss1 libasound2 libxtst6 xauth xvfb
 ```
 
 For Ubuntu >=24.04 and optionally for Debian 13:
 
 ```shell
-apt-get install libgtk2.0-0t64 libgtk-3-0t64 libgbm-dev libnotify-dev libnss3 libxss1 libasound2t64 libxtst6 xauth xvfb
+apt-get install libgtk-3-0t64 libgbm-dev libnotify-dev libnss3 libxss1 libasound2t64 libxtst6 xauth xvfb
 ```
 
 #### Arch
 
 ```shell
-pacman -S gtk2 gtk3 alsa-lib xorg-server-xvfb libxss nss libnotify
+pacman -S gtk3 alsa-lib xorg-server-xvfb libxss nss libnotify
 ```
 
 #### Amazon Linux 2023