Update all guides to use versionless features and MP7

[gkwan-ibm]

• use the versionless features and MP 7 as

<featureManager>
    <platform>microprofile-7.0</platform>
    <platform>jakartaee-10.0</platform>
    <feature>cdi</feature>
    <feature>mpHealth</feature>
</featureManager>

• update test.yml
  • actions/checkout@v4
  • actions/setup-java@v4 and distribution: 'semeru'

[gkwan-ibm]

pending OpenLiberty/open-liberty#26703