fix(OutputWatcher): use formatted string in log message

[soyacz]

Sometimes line for output could contain '%s' or '0.0%' and this break OutputWatcher log function with error:

18:42:47      msg = msg % self.args
18:42:47  ValueError: incomplete format

File "/home/ubuntu/scylla-cluster-tests/sdcm/remote/libssh2_client/__init__.py",
    line 449, in _process_output
      watcher.submit_line(data)
File "/home/ubuntu/scylla-cluster-tests/sdcm/remote/base.py",
    line 231, in submit_line
      self.log.debug("<%s>: " + line.rstrip('\n'), self.hostname)
Message: '<%s>: Percent Repaired       : 0.0%'
Arguments: ('10.4.0.228',)

Change format for log message info

self.log.debug("%s - %s', self.hostname, line)

Testing

• [ ]

PR pre-checks (self review)

• I added the relevant backport labels
• I didn't leave commented-out/debugging code

Reminders

• Add New configuration option and document them (in sdcm/sct_config.py)
• Add unit tests to cover my changes (under unit-test/ folder)
• Update the Readme/doc folder relevant to this change (if needed)

[fruch]

LGTM

Mark the backports needed

[soyacz]

LGTM

Mark the backports needed

actually looks breaking commit wasn't backported yet. If we backport it to 6.0 then we need to do with this one the same.

[vponomaryov]

LGTM

[soyacz]

@fruch linting failed on kafka test:

08:46:29  ---- linting: ./test-cases/kafka/longevity-kafka-cdc.yaml -----
08:46:29  Traceback (most recent call last):
08:46:29    File "/tmp/jenkins/workspace/can_scylla-cluster-tests_PR-7493/./sct.py", line 795, in _run_yaml_test
08:46:29      config = SCTConfiguration()
08:46:29    File "/tmp/jenkins/workspace/can_scylla-cluster-tests_PR-7493/sdcm/sct_config.py", line 1961, in __init__
08:46:29      self['kafka_connectors'] = [SctKafkaConfiguration(**connector)
08:46:29    File "/tmp/jenkins/workspace/can_scylla-cluster-tests_PR-7493/sdcm/sct_config.py", line 1961, in <listcomp>
08:46:29      self['kafka_connectors'] = [SctKafkaConfiguration(**connector)
08:46:29    File "pydantic/main.py", line 341, in pydantic.main.BaseModel.__init__
08:46:29  pydantic.error_wrappers.ValidationError: 1 validation error for SctKafkaConfiguration
08:46:29  source
08:46:29    field required (type=value_error.missing)

[aleksbykov]

LGTM

[fruch]

@fruch linting failed on kafka test:

08:46:29  ---- linting: ./test-cases/kafka/longevity-kafka-cdc.yaml -----
08:46:29  Traceback (most recent call last):
08:46:29    File "/tmp/jenkins/workspace/can_scylla-cluster-tests_PR-7493/./sct.py", line 795, in _run_yaml_test
08:46:29      config = SCTConfiguration()
08:46:29    File "/tmp/jenkins/workspace/can_scylla-cluster-tests_PR-7493/sdcm/sct_config.py", line 1961, in __init__
08:46:29      self['kafka_connectors'] = [SctKafkaConfiguration(**connector)
08:46:29    File "/tmp/jenkins/workspace/can_scylla-cluster-tests_PR-7493/sdcm/sct_config.py", line 1961, in <listcomp>
08:46:29      self['kafka_connectors'] = [SctKafkaConfiguration(**connector)
08:46:29    File "pydantic/main.py", line 341, in pydantic.main.BaseModel.__init__
08:46:29  pydantic.error_wrappers.ValidationError: 1 validation error for SctKafkaConfiguration
08:46:29  source
08:46:29    field required (type=value_error.missing)

adderssing it on #7498