t3.26.1

What's Changed

Bug fixes:

• Improve gh CI caching #615
• .github: workflows: apt-get update before cache-apt-pkgs-action #622
• src: lib: stream: Fix thumbnail path backpressuring the live tee #618
• src: Start the GStreamer device monitor on first use #620

Full Changelog: t3.26.0...t3.26.1