[BUG] fork/exec HOME/.hauler/cosign: text file busy

[dweomer]

See #211:

zackbradys@Zacks-MBP hauler % hauler version
 __    __       ___       __    __   __       _______ .______
|  |  |  |     /   \     |  |  |  | |  |     |   ____||   _  \
|  |__|  |    /  ^  \    |  |  |  | |  |     |  |__   |  |_)  |
|   __   |   /  /_\  \   |  |  |  | |  |     |   __|  |      /
|  |  |  |  /  _____  \  |  `--'  | |  `----.|  |____ |  |\  \----.
|__|  |__| /__/     \__\  \______/  |_______||_______|| _| `._____|
hauler: Airgap Swiss Army Knife

GitVersion:    1.0.1
GitCommit:     bb2a8bf
GitTreeState:  clean
BuildDate:     2024-02-27T16:30:03Z
GoVersion:     go1.21.7
Compiler:      gc
Platform:      darwin/arm64

Describe the Bug:

• When serving the registry and fileserver at the same time, hauler errors due to an issue with cosign
• See the command and error below:

(./hauler store serve fileserver & echo 'hauler fileserver completed') && (./hauler store serve registry & echo 'hauler registry completed')

2024-03-25T02:25:02.731540057Z Error: fork/exec /root/.hauler/cosign: text file busy
2024-03-25T02:25:02.731815470Z Usage:
2024-03-25T02:25:02.731826940Z   hauler store serve registry [flags]

Flags:
2024-03-25T02:25:02.731835598Z   -c, --config string      Path to a config file, will override all other configs
      --directory string   Directory to use for backend.  Defaults to $PWD/registry (default "registry")
2024-03-25T02:25:02.731840278Z 2:25AM ERR fork/exec /root/.hauler/cosign: text file busy
2024-03-25T02:25:02.731842794Z   -h, --help               help for registry
2024-03-25T02:25:02.731852380Z   -p, --port int           Port to listen on. (default 5000)
2024-03-25T02:25:02.731854967Z 
2024-03-25T02:25:02.731857530Z Global Flags:
2024-03-25T02:25:02.731860451Z       --cache string       Location of where to store cache data (defaults to $XDG_CACHE_DIR/hauler)
2024-03-25T02:25:02.731863487Z   -l, --log-level string    (default "info")
2024-03-25T02:25:02.731866638Z   -s, --store string       Location to create store at (default "store")