Update databricks-labs-blueprint requirement from ~0.4.1 to ~0.4.3 (#1058)

## Changes
<!-- Summary of your changes that are easy to understand. Add
screenshots when necessary -->
Updates the requirements on
[databricks-labs-blueprint](https://github.com/databrickslabs/blueprint)
to permit the latest version.

Pre-req for #1056, #1057

### Tests
<!-- How is this tested? Please see the checklist below and also
describe any other relevant tests -->

- [ ] manually tested
- [ ] added unit tests
- [ ] added integration tests
- [ ] verified on staging environment (screenshot attached)

Author: nkvuong

pyproject.toml

@@ -45,7 +45,7 @@ classifiers = [
 ]
 dependencies = ["databricks-sdk~=0.21.0",
                 "databricks-labs-lsql~=0.2.1",
-                "databricks-labs-blueprint~=0.4.1",
+                "databricks-labs-blueprint~=0.4.3",
                 "PyYAML>=6.0.0,<7.0.0"]
 
 [project.entry-points.databricks]