Adds raising of errors when importing orbit_tasks package

This MR adds raising of import errors in the `omni.isaac.orbit_tasks` package. Previously,
these were getting caught and ignored which made debugging difficult.

- Bug fix (non-breaking change which fixes an issue)

- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./orbit.sh --format`
- [x] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [x] I have updated the changelog and the corresponding version in the
extension's `config/extension.toml` file
- [x] I have added my name to the `CONTRIBUTORS.md` or my name already
exists there

---------
Co-authored-by: Mayank Mittal <mittalma@leggedrobotics.com>

source/extensions/omni.isaac.orbit_tasks/config/extension.toml

 [package]
 
 # Note: Semantic Versioning is used: https://semver.org/
-version = "0.5.2"
+version = "0.5.3"
 
 # Description
 title = "ORBIT Environments"

source/extensions/omni.isaac.orbit_tasks/docs/CHANGELOG.rst

 Changelog
 ---------
 
+0.5.3 (2023-11-16)
+~~~~~~~~~~~~~~~~~~
+
+Fixed
+^^^^^
+
+* Added raising of error in the :meth:`omni.isaac.orbit_tasks.utils.importer.import_all` method to make sure
+  all the packages are imported properly. Previously, error was being caught and ignored.
+
+
 0.5.2 (2023-11-08)
 ~~~~~~~~~~~~~~~~~~
 

source/extensions/omni.isaac.orbit_tasks/omni/isaac/orbit_tasks/utils/importer.py

@@ -75,9 +75,6 @@ def _walk_packages(
         if info.ispkg:
             try:
                 __import__(info.name)
-            except ImportError:
-                if onerror is not None:
-                    onerror(info.name)
             except Exception:
                 if onerror is not None:
                     onerror(info.name)