Improvements of and documentation of the Gradle build

[jjohannes]

This issue is a follow-up for the work done here: #1732
Each task should be converted to an issue and addressed separately. Tasks are aligned in a priority order.

Tasks

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1. Fix address book tasks in Taskfile.yml #1885
   bug +1
   
2. Revisit docs in /docs directory (ensure info in them is still relevant) #1898
   +0
   
3. Revisit GH Actions names #1894
   +0
   
4. Introduce Guava fix, which should be in plugin in the future
5. Get rid of mergeJar("com.google.code.findbugs:jsr305")
6. Adjust the code style rules and tools to what its done in hedera-services (e.g. remove sonar, introduce spotless, decide if we want to keep error prone etc.)
7. Revisit gradle setup in tck project
8. Update authors (publishing info) #1896
   +0
   
9. Add more docs for the Gradle build (.kts files, code comments)
10. Resolve duplication in constraints publishing (right now there is some duplication)
11. Add more docs for the Gradle build (.md files, in particular for adding/modifying dependencies)
12. Review what SDK dependencies should be transitive: build: Kotlin DSL / Convention Plugins / Java Modules #1732 (comment)
13. Gradle task for Uber Jar creation
14. Revisit Taskfile.yml (maybe make it as gradle tasks)
15. Add PR Check for the Android Example (that it builds)

[jjohannes]

Related:

• Check which boxed can be ticked after build: use common Hiero Gradle config #2033 is integrated
• Check what may already be documented through Document Gradle configuration hiero-ledger/hiero-gradle-conventions#6