Actions: Add more tests for the cache service

[ChristopherHX]

The following is already working, but could be broken without having ci raising an error

on: push
defaults:
  run:
    shell: bash

jobs:
    createcache:
        runs-on: ubuntu-latest
        steps:
        -   uses: actions/cache@v3
            id: cache
            with:
                path: |
                    ./.cache
                key: prefix0-keya
        -   run: |
                mkdir ./.cache
                echo createcache > ./.cache/Test
            if: steps.cache.outputs.cache-hit != 'true'
        -   run: exit 1
            if: steps.cache.outputs.cache-hit == 'true'
    createcache2:
        runs-on: ubuntu-latest
        needs: createcache
        steps:
        -   uses: actions/cache@v3
            id: cache
            with:
                path: |
                    ./.cache
                key: prefix0-keyb
        -   run: |
                mkdir ./.cache
                echo createcache2 > ./.cache/Test
            if: steps.cache.outputs.cache-hit != 'true'
        -   run: exit 1
            if: steps.cache.outputs.cache-hit == 'true'
    createcache3:
        runs-on: ubuntu-latest
        needs: createcache2
        steps:
        -   uses: actions/cache@v3
            id: cache
            with:
                path: |
                    ./.cache
                key: prefix1-keya
        -   run: |
                mkdir ./.cache
                echo createcache3 > ./.cache/Test
            if: steps.cache.outputs.cache-hit != 'true'
        -   run: exit 1
            if: steps.cache.outputs.cache-hit == 'true'
    hitcache:
        needs: createcache3
        runs-on: ubuntu-latest
        steps:
        -   uses: actions/cache@v3
            id: cache
            with:
                path: |
                    ./.cache
                key: dummy-key
                restore-keys: |
                  prefix0-
        -   run: 'ls -l ./.cache'
        -   run: exit 1
            if: steps.cache.outputs.cache-hit == 'true'
        -   run: echo We got the expected non exact hit the cache!
            if: steps.cache.outputs.cache-hit != 'true'
        -   run: |
              cat ./.cache/Test
        -   name: Verify that the right entry has been restored
            run: |
              [[ "createcache2" != "$(cat ./.cache/Test )" ]] && exit 1 || exit 0