Add github workflow to generate wheel

[CaselIT]

This runs after a release has been created

Currently this is still configured to target the test pypi. After a successful release and run it will be updated to target the real pypi

Closes #3747
Closes #4827

Checklist

This pull request is:

• A documentation / typographical error fix
  • Good to go, no issue or tests are needed
• A short code fix
  • please include the issue number, and create an issue if none exists, which
    must include a complete example of the issue. one line code fixes without an
    issue and demonstration will not be accepted.
  • Please include: Fixes: #<issue number> in the commit message
  • please include tests. one line code fixes without tests will not be accepted.
• A new feature implementation
  • please include the issue number, and create an issue if none exists, which must
    include a complete example of how the feature would look.
  • Please include: Fixes: #<issue number> in the commit message
  • please include tests.

Have a nice day!

[zzzeek]

so I should merge this straight in right?

[CaselIT]

I've asked for feedback in #5207 so maybe we could wait a could of days to see if anyone has some?

[CaselIT]

Also seems that python 2.7 on ubuntu fails to install the wheel for some reason.

https://github.com/CaselIT/sqlalchemy/actions/runs/73872277

NOTE: python 3.5 is expected to fails since it currently fails the test on rel_13.

[CaselIT]

The generated wheels are here
https://github.com/CaselIT/sqlalchemy/releases/tag/rel_1_3_16_wheel
And currently published on the test pypi:
https://test.pypi.org/project/SQLAlchemy/1.3.16.dev0/#files

[CaselIT]

I need to figure out why it generates "dev0" builds

[CaselIT]

I need to figure out why it generates "dev0" builds

setup.cfg has the section

[egg_info]
tag_build = dev

that is removed with

sed -i '/tag_build=dev/d' setup.cfg
sed -i '/tag_build = dev/d' setup.cfg

before releasing in the current release script.
I guess I should I add a step like this in the workflow, or there is an environment variable or flag that overrides it?

[CaselIT]

Updated build without dev0
https://github.com/CaselIT/sqlalchemy/releases/tag/rel_1_3_16_wheel_2
And currently published on the test pypi:
https://test.pypi.org/project/SQLAlchemy/1.3.16/#files

[CaselIT]

the last commit updates the linux workflow, so that python 2.7 wheels are build (both cp27m and cp27mu)

[CaselIT]

I've asked for feedback in #5207 so maybe we could wait a could of days to see if anyone has some?

I guess we can merge this.

[zzzeek]

I just saw all the wheels, amazing!!!

[CaselIT]

Nice, This should also go on rel_1.3