[BUG] Install fails: Unable to connect to a repository at URL

[sirhopcount]

I'm running into an issue installing the plugin in the taiga-frontend. We were using the old kaleidos-ventures repository but it seems that has been removed so I'm updating our install to use the new repository using the method described in the README. This is the snippet from our Dockerfile:

cd dist/plugins && \
svn export "https://github.com/taigaio/taiga-contrib-slack/tags/${TAIGA_CONTRIB_SLACK_TAG}/front/dist" "slack"

But when I do a docker build it fails on the svn export:

#12 36.23 + cd dist/plugins
#12 36.23 + svn export https://github.com/taigaio/taiga-contrib-slack/tags/6.0.2/front/dist slack
#12 36.53 svn: E170013: Unable to connect to a repository at URL 'https://github.com/taigaio/taiga-contrib-slack/tags/6.0.2/front/dist'
#12 36.53 svn: E160013: '/taigaio/taiga-contrib-slack/tags/6.0.2/front/dist' path not found

I noticed that https://github.com/taigaio/taiga-contrib-slack/tags/6.0.2/front/dist indeed doesn't exist so I substituted tags with tree, e.g: https://github.com/taigaio/taiga-contrib-slack/tags/6.0.2/front/dist which does exist but that also fails:

#12 35.94 + cd dist/plugins
#12 35.94 + svn export https://github.com/taigaio/taiga-contrib-slack/tree/6.0.2/front/dist slack
#12 36.23 svn: E170013: Unable to connect to a repository at URL 'https://github.com/taigaio/taiga-contrib-slack/tree/6.0.2/front/dist'
#12 36.23 svn: E160013: '/taigaio/taiga-contrib-slack/tree/6.0.2/front/dist' path not found

I've tried multiple versions, 6.0.2 and 6.8.0 but it made no difference.

So I think I'm missing something or the procedure changed and the README wasn't updated.