refactor: update sql schema autogen tool

[neil-iohk]

Description

Replacement of dbviz, schema generation tool with SchemaSpy. Removal of old references to dbviz in the postgres earthly target and Catalyst-CI Postgres Example

Output Link For Docs:
https://input-output-hk.github.io/catalyst-ci/branch/chore_update_sql_schema_autogen_tool/appendix/examples/

Related Issue(s)

#315

Description of Changes

• Modified the SQL schema autogen tool to removing existing dbviz tool and replacing with SchemaSpy for automated schema generation.
• Improved documentation around tooling,removing references no longer relevant to SchemaSpy autogen tool.
• Added markdown template and custom script to ensure the auto-generated SchemaSpy UI displays correctly and fills the screen removing double scroll bars in the view.
• Added Java Eartly stage to use as a base from which to copy necessary files during document build stage and improve caching.
• Refactored how Java dependencies are downloaded and cached. Added a base image openjdk:21-jdk-slim to avoid network calls like apt-get running on every build. This caches the Java installation and other dependencies to avoid unnecessary network calls during a build.

Please confirm the following checks

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream module

[stevenj]

Also, because its no longer used, we can totally remove the dbviz tooling from this repo. Add that to this PR.

[stevenj]

LGTM