Update Oracle WebLogic and Java Dockerfiles for version 14.1.1.0

- Standardized Dockerfile formatting (e.g., uppercase `AS` in multi-stage builds)
- Fixed minor grammatical issues in comments for clarity
- Improved environment variable definitions with consistent syntax
- Refined system update commands and alternatives configuration for Java binaries
- Removed deprecated Dockerfiles for developer, generic, and slim distributions
- Updated buildDockerImage.sh script for better compatibility with JDK 8/11

This update ensures consistency across the Dockerfiles and improves build stability.

Signed-off-by: Marcos Caputo <[email protected]>

Author: caputomarcos