libcapsule v0.20240806.0
* capsule-capture-libs: Never undo our rewriting of the symlink target,
fixing a regression on NixOS (steam-runtime#684)
* capsule-capture-libs: Add --level-prefix option, which prepends a
severity indicator compatible with `systemd-cat --level-prefix=true`
(steamrt/tasks#444)
* capsule-capture-libs: Add "quiet:" pattern to suppress non-fatal
warnings for a particular library (steamrt/tasks#488)
* utils: Prepend basename of argv[0] to diagnostic messages
* utils: Consistently add error: or warning: prefix where appropriate
* tests: Improve coverage