Fix: GitHub Actions trigger for docker-deploy workflow

[finagin]

Fix for #2032

I apologize for the wait and the mistake I made in the previous PR.

docker/metadata-action@v5 can't handle release trigger, but works with tags trigger that are fire when created release.

Now the deployment is configured according to the following scheme:

• when push to master, creating images with tags master and sha-{sha}
• when push tags, creating images with tags master, sha-{sha}, latest and all semver variants

---

Important

Please create hotfix release 5.3.3 after merge PR for generating semver tags for image
Otherwise only the master and sha tags will be created

[dometto]

I apologize for the wait and the mistake I made in the previous PR.

Absolutely no worries, your contribution is greatly appreciated!

[finagin]

@dometto please create release 5.3.3 for generating tags for image

[dometto]

5.3.3 is now released, pulling with semver tags works! Thanks @finagin

[dometto]

I did just notice the tags changed from e.g. v5.3 to 5.3. Maybe we should make this change explicit somewhere. Any suggestions for where to document it?