fix(templates): Install dependencies in CI and bump dev dependencies

[pnadolny13]

Closes #1223 and #1225

I ran into these same bugs when using the cookiecutter for https://github.com/pnadolny13/tap-cloudwatch and had to resolve them for my implementation. Heres what ended up working for me.

• github action install poetry dependencies before running tox
• bump black version
• migrate from legacy poetry dev dependencies to group.dev. I removed black then readded it and poetry did this automatically for me with a warning.

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📚 Documentation preview 📚: https://meltano-sdk--1305.org.readthedocs.build/en/1305/

[codecov]

Codecov Report

Merging #1305 (a0abdbd) into main (2773841) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1305   +/-   ##
=======================================
  Coverage   84.53%   84.53%           
=======================================
  Files          44       44           
  Lines        4190     4190           
  Branches      725      725           
=======================================
  Hits         3542     3542           
  Misses        474      474           
  Partials      174      174           

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[pnadolny13]

@edgarrmondragon I saw that you made a few changes to this, is it good to go now?

[edgarrmondragon]

@pnadolny13 yeah this is good to go. Auto-merging...

[pnadolny13]

@edgarrmondragon I think its blocked by an approval from a code owner. Did we want others to review also?

[edgarrmondragon]

@edgarrmondragon I think its blocked by an approval from a code owner. Did we want others to review also?

@pnadolny13 nope, just forgot to approve 😅