Update release workflow

[louise-davies]

Description

The old release action is a) unmaintained and b) always failed to upload the assets when the release was first created and thus the job needed to be reran. This fixes both those issues.

I tested this on my fork so feel free to verify it works: https://github.com/louise-davies/datagateway

This will also auto-trigger github to fill in it's generated release notes - it also adds a tiny bit of config to that to separate out dependency updates

Testing instructions

Add a set up instructions describing how the reviewer should test the code

• Review code
• Check Actions build
• Review changes to test coverage

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.25%. Comparing base (8cb754d) to head (29dbc01).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1660   +/-   ##
========================================
  Coverage    96.25%   96.25%           
========================================
  Files          170      170           
  Lines         7326     7326           
  Branches      2342     2355   +13     
========================================
  Hits          7052     7052           
  Misses         254      254           
  Partials        20       20           

Flag	Coverage Δ
common	95.32% <ø> (ø)
dataview	97.36% <ø> (ø)
download	95.99% <ø> (ø)
search	96.55% <ø> (ø)

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