Update github actions dependencies to latest version

[dlubitz]

Update github actions:

• actions/checkout@v3 -> actions/checkout@v4
• actions/cache@v2 -> actions/cache@v4

Also fixing, the pipeline. Now it runs also on branches. Needed some quirk to fulfill the dependency requirements of the neos/neos-base-distribution or moreover of the required neos/demo package as this already require the neos/seo package in a given version (~4.1).

[kdambekalns]

Dang, after the merge it fails…

Run git clone --depth 1 --branch 9.0 https://github.com/neos/neos-development-distribution.git ${FLOW_PATH_ROOT}
  git clone --depth 1 --branch 9.0 https://github.com/neos/neos-development-distribution.git ${FLOW_PATH_ROOT}
  cd ${FLOW_PATH_ROOT}
  composer config --no-plugins allow-plugins.neos/composer-plugin true
  
  git -C ../neos-seo checkout -b ${PACKAGE_TARGET_VERSION}
  composer config repositories.package '{ "type": "path", "url": "../neos-seo", "options": { "symlink": false } }'
  composer require --no-update --no-interaction neos/seo:@dev
  composer require --dev --no-update --no-interaction phpstan/phpstan:^1.10
  shell: /usr/bin/bash -e {0}
  env:
    FLOW_PATH_ROOT: ../neos-base-distribution
    PACKAGE_FOLDER: neos-seo
    PACKAGE_TARGET_VERSION: 4.x
    COMPOSER_PROCESS_TIMEOUT: 0
    COMPOSER_NO_INTERACTION: 1
    COMPOSER_NO_AUDIT: 1
Cloning into '../neos-base-distribution'...
fatal: a branch named '4.x' already exists
Error: Process completed with exit code 128.

[dlubitz]

Ihhhh.... I'll take care of this tomorrow.