build: format codebase imports using ruff linter (#1028)

# What does this PR do?

- Configured ruff linter to automatically fix import sorting issues.
- Set --exit-non-zero-on-fix to ensure non-zero exit code when fixes are
applied.
- Enabled the 'I' selection to focus on import-related linting rules.
- Ran the linter, and formatted all codebase imports accordingly.
- Removed the black dep from the "dev" group since we use ruff

Signed-off-by: Sébastien Han <seb@redhat.com>

[//]: # (If resolving an issue, uncomment and update the line below)
[//]: # (Closes #[issue-number])

## Test Plan
[Describe the tests you ran to verify your changes with result
summaries. *Provide clear instructions so the plan can be easily
re-executed.*]

[//]: # (## Documentation)
[//]: # (- [ ] Added a Changelog entry if the change is significant)

Signed-off-by: Sébastien Han <seb@redhat.com>

llama_stack/providers/inline/scoring/basic/scoring.py

@@ -14,13 +14,13 @@ from llama_stack.apis.scoring import (
     ScoringResult,
 )
 from llama_stack.apis.scoring_functions import ScoringFn, ScoringFnParams
-
 from llama_stack.distribution.datatypes import Api
 from llama_stack.providers.datatypes import ScoringFunctionsProtocolPrivate
 from llama_stack.providers.utils.common.data_schema_validator import (
     get_valid_schemas,
     validate_dataset_schema,
 )
+
 from .config import BasicScoringConfig
 from .scoring_fn.equality_scoring_fn import EqualityScoringFn
 from .scoring_fn.regex_parser_scoring_fn import RegexParserScoringFn

llama_stack/providers/inline/scoring/basic/scoring_fn/equality_scoring_fn.py

@@ -7,7 +7,6 @@
 from typing import Any, Dict, Optional
 
 from llama_stack.apis.scoring import ScoringResultRow
-
 from llama_stack.apis.scoring_functions import ScoringFnParams
 from llama_stack.providers.utils.scoring.base_scoring_fn import RegisteredBaseScoringFn
 

llama_stack/providers/inline/scoring/basic/scoring_fn/fn_defs/equality.py

@@ -11,7 +11,6 @@ from llama_stack.apis.scoring_functions import (
     ScoringFn,
 )
 
-
 equality = ScoringFn(
     identifier="basic::equality",
     description="Returns 1.0 if the input is equal to the target, 0.0 otherwise.",

llama_stack/providers/inline/scoring/basic/scoring_fn/fn_defs/subset_of.py

@@ -11,7 +11,6 @@ from llama_stack.apis.scoring_functions import (
     ScoringFn,
 )
 
-
 subset_of = ScoringFn(
     identifier="basic::subset_of",
     description="Returns 1.0 if the expected is included in generated, 0.0 otherwise.",

llama_stack/providers/inline/scoring/basic/scoring_fn/regex_parser_scoring_fn.py

@@ -4,7 +4,6 @@
 # This source code is licensed under the terms described in the LICENSE file in
 # the root directory of this source tree.
 import re
-
 from typing import Any, Dict, Optional
 
 from llama_stack.apis.scoring import ScoringResultRow