GH actions update due to new project

[offtherailz]

Description

This PR fixes GH actions to work with new mvn dependency management.

In draft because it is still in testing on my fork

Please check if the PR fulfills these requirements

• The commit message follows our guidelines: https://github.com/geosolutions-it/MapStore2/blob/master/CONTRIBUTING.md
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce? (check one with "x", remove the others)

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Other... Please describe:

Checks and tasks

• test cut release branch
• test Update depedencies versions --> creates a PR like this
• test prepare release --> create commit offtherailz@3a8f633 on release branch and a pr for master like this [github-action] Update changelog for release 2024.02.00 offtherailz/MapStore2#56
• test create release --> sample release created https://github.com/offtherailz/MapStore2/releases
• test post release
• update documentation with the new gh action (update dependencies)
• test project creation and backend starting correctly
• fix project build (fails because spring-webmvc is missing).

Issue

What is the current behavior?

fix #10020

What is the new behavior?

Breaking change

Does this PR introduce a breaking change? (check one with "x", remove the other)

• Yes, and I documented them in migration notes
• No

Other useful information

Detail

• removed project template backend module, not included in build and failing. If a project requires a backend, they will create it on theirself (preferibly under web, if some shared dependencies are needed)
• centralized dependencies as for the main project in dependency management.
• now update dependencies versions is a separate task

[ElenaGallo]

@offtherailz please backport to stable branch. Thanks