Fix tag release workflow

[constanca-m]

What does this PR do?

The current release workflow was failing with:

Run actions/github-script@v7
SyntaxError: Unexpected number
    at new AsyncFunction (<anonymous>)
Error: Unhandled error: SyntaxError: Unexpected number
    at callAsyncFunction (/home/runner/work/_actions/actions/github-script/v7/dist/index.js:35424:16)
    at main (/home/runner/work/_actions/actions/github-script/v7/dist/index.js:35522:26)
    at /home/runner/work/_actions/actions/github-script/v7/dist/index.js:35497:1
    at /home/runner/work/_actions/actions/github-script/v7/dist/index.js:35553:3
    at Object.<anonymous> (/home/runner/work/_actions/actions/github-script/v7/dist/index.js:35556:12)
    at Module._compile (node:internal/modules/cjs/loader:1241:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1295:10)
    at Module.load (node:internal/modules/cjs/loader:1091:32)
    at Module._load (node:internal/modules/cjs/loader:938:12)

Putting the version variable inside " to make it a string solves this issue.

We also check if the version variable in version.py increased. If that is the case, then we create a new release. Otherwise, nothing happens.

Checklist

• [ ] My code follows the style guidelines of this project
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [x] I have made corresponding change to the default configuration files
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] I have added an entry in CHANGELOG.md

How to test

As far as I am aware, the only way to test would be by using your own repository. Just do the following:

• Have a share/version.py file there.
• Copy the release workflow to that repository.

Then make the commits to check everything is working as expected. You need to update the version.py file to trigger the workflow, unless you also change the trigger or make the workflow run manually.

It is not possible to test it here, because we would have to update the version.py file of ESF, which does not make sense in this case.

[constanca-m]

I updated the workflow to only release a new tag if the new version in version.py is bigger than the latest released version. This way, if there was no change to the variable version in version.py, we also do not release a new tag, or if the version decreased somehow, we do not release it as well. @axw @gizas, is it better this way?