Remove the publish action (#80)

As described in #73, this action has been deprecated and replaced with
individual workflows using PyPI trusted publishing. This PR removes the
old code, specifically the no longer working Teams webhook.

I checked other repos on GitHub to see if anyone else is using this
action, and they aren't really:
https://github.com/search?q=SuffolkLITLab%2FALActions%2Fpublish&type=code.

13 uses total:

* 1 from the documentation being deleted here
* 7 from spam repo clones
* 2 from ILAOEfile, which has been transferred to ILAO and isn't used
anymore.
* 3 from forks of our repos

I.e. no uses that are being used to publish unique packages by folks in
the docassemble community.

Resolves #21.

Author: BryceStevenWilley

README.md

@@ -219,24 +219,6 @@ jobs:
 
 Artifacts should be visible in the Summary of the action results.
 
-### publish
-
-`publish` publishes a python package to pypi, and announces the publishing to a given Teams chat.
-
-#### Usage
-
-```yml
-jobs:
-  my-workflow:
-    ...
-    steps:
-    - uses: SuffolkLITLab/ALActions/publish@main
-      with:
-        PYPI_API_TOKEN: ${{ secrets.PYPI_API_TOKEN }}
-        VERSION_TO_PUBLISH: ${{ env.GITHUB_REF_NAME }}
-        TEAMS_BUMP_WEBHOOK: ${{ secrets.TEAMS_BUMP_WEBHOOK }}
-```
-
 ### Hall Monitor
 
 `hall_monitor` checks a given docassemble server to make sure that all of the installed interviews can load their first page correctly,