Remove centralized libs.versions.toml

[jhonatapers]

This pull request removes the use of the centralized libs.versions.toml file for dependency management and replaces references to version catalog dependencies with explicit dependency declarations in individual build.gradle files. The change primarily affects how dependencies are managed and declared across the project.

Dependency management changes:

• Deleted the gradle/libs.versions.toml file, removing the version catalog and all centralized dependency version management.
• Replaced libs.guava and libs.junit.jupiter references with explicit dependency declarations in application/build.gradle and domain/build.gradle, and removed libs.guava from infrastructure/build.gradle. [1] [2] [3]

Dependency cleanup:

• Removed the Guava library as a dependency from all affected modules. [1] [2] [3]
• Updated the JUnit Jupiter dependency to a specific version (5.11.4) in domain/build.gradle instead of using the version catalog.