chore: update docker-compose-try-it.yaml and Helm chart to v0.17.3

- Updated devguard image to v0.17.3
- Updated devguard-web image to v0.17.3
- Updated devguard-postgresql image to v0.17.3
- Updated Helm chart appVersion to v0.17.3

Author: timbastin

Chart.yaml

@@ -20,4 +20,4 @@ version: 0.16.1
 # incremented each time you make changes to the application. Versions are not expected to
 # follow Semantic Versioning. They should reflect the version the application is using.
 # It is recommended to use it with quotes.
-appVersion: v0.17.1
+appVersion: v0.17.3