scripts: Fix twisterlib for ruff - UP004

This fixes ruff linting error UP004,
where a redundant `object` inheritance
is present.

Signed-off-by: Lukasz Mrugala <lukaszx.mrugala@intel.com>

.ruff-excludes.toml

@@ -800,7 +800,6 @@
 "./scripts/pylib/twister/twisterlib/hardwaremap.py" = [
     "B006",     # https://docs.astral.sh/ruff/rules/mutable-argument-default
     "E501",     # https://docs.astral.sh/ruff/rules/line-too-long
-    "UP004",    # https://docs.astral.sh/ruff/rules/useless-object-inheritance
     "UP015",    # https://docs.astral.sh/ruff/rules/redundant-open-modes
     "UP031",    # https://docs.astral.sh/ruff/rules/printf-string-formatting
 ]
@@ -816,9 +815,6 @@
     "UP031",    # https://docs.astral.sh/ruff/rules/printf-string-formatting
     "UP032",    # https://docs.astral.sh/ruff/rules/f-string
 ]
-"./scripts/pylib/twister/twisterlib/mixins.py" = [
-    "UP004",    # https://docs.astral.sh/ruff/rules/useless-object-inheritance
-]
 "./scripts/pylib/twister/twisterlib/package.py" = [
     "UP015",    # https://docs.astral.sh/ruff/rules/redundant-open-modes
 ]
@@ -845,7 +841,6 @@
     "F541",     # https://docs.astral.sh/ruff/rules/f-string-missing-placeholders
     "SIM102",   # https://docs.astral.sh/ruff/rules/collapsible-if
     "SIM115",   # https://docs.astral.sh/ruff/rules/open-file-with-context-handler
-    "UP004",    # https://docs.astral.sh/ruff/rules/useless-object-inheritance
     "UP015",    # https://docs.astral.sh/ruff/rules/redundant-open-modes
     "UP022",    # https://docs.astral.sh/ruff/rules/replace-stdout-stderr
     "UP031",    # https://docs.astral.sh/ruff/rules/printf-string-formatting

scripts/pylib/twister/twisterlib/hardwaremap.py

@@ -33,7 +33,7 @@ logger = logging.getLogger('twister')
 logger.setLevel(logging.DEBUG)
 
 
-class DUT(object):
+class DUT:
     def __init__(self,
                  id=None,
                  serial=None,

scripts/pylib/twister/twisterlib/mixins.py

@@ -4,5 +4,5 @@
 # SPDX-License-Identifier: Apache-2.0
 
 
-class DisablePyTestCollectionMixin(object):
+class DisablePyTestCollectionMixin:
     __test__ = False

scripts/pylib/twister/twisterlib/runner.py

@@ -59,7 +59,7 @@ logger = logging.getLogger('twister')
 logger.setLevel(logging.DEBUG)
 
 
-class ExecutionCounter(object):
+class ExecutionCounter:
     def __init__(self, total=0):
         '''
         Most of the stats are at test instance level