Slack version detection not working

[tbcahill]

The latest version is not being pulled correctly for Slack

Example Output:
INFO : slack : found app at /Applications/Slack.app, version 4.36.140, on versionKey CFBundleShortVersionString
INFO : slack : appversion: 4.36.140
INFO : slack : Latest version of Slack is arm64

As a workaround, I'm pulling the version from Slack release page currently:

HTML_CONTENT=$(curl -s "https://slack.com/intl/en-gb/release-notes/mac")
LATEST_VERSION=$(echo "$HTML_CONTENT" | grep -oE "Slack [0-9]+\.[0-9]+\.[0-9]+" | awk '{print $2}' | head -n 1 | tr -d '"')
echo " Latest Slack version: $LATEST_VERSION"

[alexandernezis]

I think there was a fix here: #1550