libpcap: add x-checker-data for autoupdate

[muelli]

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[muelli]

2025-11-14T16:22:45.4969589Z [5/102] Compiling [wayland] glfw/wl_window.c ...
2025-11-14T16:22:45.5795126Z [6/102] Compiling kitty/fonts.c ...
2025-11-14T16:22:45.7176365Z [7/102] Compiling kitty/glfw.c ...
2025-11-14T16:22:46.4978447Z glfw/wl_window.c: In function ‘xdgToplevelHandleConfigure’:
2025-11-14T16:22:46.4979183Z glfw/wl_window.c:434:9: error: enumeration value ‘XDG_TOPLEVEL_STATE_CONSTRAINED_LEFT’ not handled in switch [-Werror=switch]
2025-11-14T16:22:46.4979647Z   434 |         switch (*state) {
2025-11-14T16:22:46.4979841Z       |         ^~~~~~
2025-11-14T16:22:46.4980230Z glfw/wl_window.c:434:9: error: enumeration value ‘XDG_TOPLEVEL_STATE_CONSTRAINED_RIGHT’ not handled in switch [-Werror=switch]
2025-11-14T16:22:46.4980916Z glfw/wl_window.c:434:9: error: enumeration value ‘XDG_TOPLEVEL_STATE_CONSTRAINED_TOP’ not handled in switch [-Werror=switch]
2025-11-14T16:22:46.4981568Z glfw/wl_window.c:434:9: error: enumeration value ‘XDG_TOPLEVEL_STATE_CONSTRAINED_BOTTOM’ not handled in switch [-Werror=switch]
2025-11-14T16:22:46.4982232Z cc1: all warnings being treated as errors
2025-11-14T16:22:46.5021276Z  done
2025-11-14T16:22:46.5021591Z Compiling [wayland] glfw/wl_window.c ...

seems unrelated to this change...