Drop Bullseye support

Author: ayufan

.github/ci/build-env

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 if [[ $# -lt 2 ]]; then
-  echo "usage: $0 <generic|raspi> <bullseye|bookworm> [amd64|arm32v7|arm64v8] [cmdline args]"
+  echo "usage: $0 <generic|raspi> <bookworm|trixie> [amd64|arm32v7|arm64v8] [cmdline args]"
   exit 1
 fi
 

.github/workflows/build_release.yaml

@@ -8,7 +8,7 @@ jobs:
       contents: write
     strategy:
       matrix:
-        debian_version: [bullseye, bookworm, trixie]
+        debian_version: [bookworm, trixie]
         arch:
           - docker: amd64
             runner: ubuntu-24.04

.github/workflows/build_test.yaml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        debian_version: [bullseye, bookworm, trixie]
+        debian_version: [bookworm, trixie]
         arch:
           - docker: amd64
             variant: amd64

RELEASE.md

@@ -4,8 +4,8 @@ Download correct version for your platform:
 
 - Variant: **raspi**: Raspberry PI compatible build with USB, CSI, WebRTC, RTSP support
 - Variant: **generic**: All other platforms with USB and MJPEG support only for time being
-- System: **bullseye**: Debian Bullseye (11) compatible build
 - System: **bookworm**: Debian Bookworm (12) compatible build
+- System: **trixie**: Debian Trixie (13) compatible build
 - Platform: **amd64**: x86/64 compatible build
 - Platform: **arm32**: ARM 32-bit kernel: PIs 0.2W, 2B, and higher, Orange PIs, Rock64, etc. No support for RPI0.
 - Platform: **arm64**: ARM 64-bit kernel: PIs 0.2W, 3B, and higher, Orange PIs, Rock64, etc. No support for RPI0 and RPI2B.