Update to `bcgovimages/von-image:1.6-ew-13*` images

[WadeBarnes]

• Adds support for credential dependency look-up.
• Includes updated versions of von_anchor and von-x

Environments to update:

• [x] devex-von-tools (builds)

• [x] devex-von-bc-tob-dev

• [x] devex-von-bc-tob-test

• [x] devex-von-bc-tob-prod

• [x] devex-bcgov-dac-dev (prod-tmp)

• [x] devex-von-dev

• [x] devex-von-test

• [x] ontvon-von-tools (builds)

• [x] ontvon-von-dev

• [x] ontvon-von-test

• [x] ontvon-von-prod

[WadeBarnes]

Adding @esune to update the TOB Demo test environment.

[esune]

devex-von-test updated.