removes --release from publish help

[EverlastingBugstopper]

we deprecated this a while ago, we can still make it behave the same (alias of wrangler publish) but remove it from the help text :)

before

$ wrangler publish --help
wrangler-publish 
🆙  Publish your worker to the orange cloud

USAGE:
    wrangler publish [FLAGS] [OPTIONS]

FLAGS:
    -h, --help       Prints help information
        --release    [deprecated] alias of wrangler publish
        --verbose    toggle verbose output

OPTIONS:
    -e, --env <env>    environments to publish to

after

$ wrangler publish --help
wrangler-publish 
🆙  Publish your worker to the orange cloud

USAGE:
    wrangler publish [FLAGS] [OPTIONS]

FLAGS:
    -h, --help       Prints help information
        --verbose    toggle verbose output

OPTIONS:
    -e, --env <env>    environments to publish to