Update Postgres version reference for 4.7.2 release

Ensure the references are for Postgres 13.4.

Image Updates

Image updates for PGO scripts, installers, examples and documentation.

Issue: [ch12324]

Image Updates

Image updates for PGO scripts, installers, examples and documentation.

Issue: [ch12324]

Image Updates

Image updates for PGO scripts, installers, examples and documentation.

Issue: [ch12324]

Update Version v4.7.2

Update Version v4.7.2

Add Release Date for v4.7.1 Release

Bump version 4.7.1

Modify search path for aggregation script

This release still uses dep and requires a different path to
search over.

Modify search path for aggregation script

This release still uses dep and requires a different path to
search over.